diff --git a/SweetHome3D/useCaseAssignment4.cld b/SweetHome3D/useCaseAssignment4.cld
new file mode 100644
index 0000000..9a5b82d
--- /dev/null
+++ b/SweetHome3D/useCaseAssignment4.cld
@@ -0,0 +1,926 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<net.java.amateras.uml.model.RootModel>
+  <backgroundColor>
+    <red>255</red>
+    <green>255</green>
+    <blue>206</blue>
+  </backgroundColor>
+  <foregroundColor>
+    <red>0</red>
+    <green>0</green>
+    <blue>0</blue>
+  </foregroundColor>
+  <showIcon>true</showIcon>
+  <listeners serialization="custom">
+    <java.beans.PropertyChangeSupport>
+      <default>
+        <source class="net.java.amateras.uml.model.RootModel" reference="../../../.."/>
+        <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+      </default>
+      <null/>
+    </java.beans.PropertyChangeSupport>
+  </listeners>
+  <sourceConnections/>
+  <targetConnections/>
+  <children>
+    <net.java.amateras.uml.model.NoteModel>
+      <backgroundColor>
+        <red>255</red>
+        <green>255</green>
+        <blue>206</blue>
+      </backgroundColor>
+      <foregroundColor>
+        <red>0</red>
+        <green>0</green>
+        <blue>0</blue>
+      </foregroundColor>
+      <showIcon>true</showIcon>
+      <parent class="net.java.amateras.uml.model.RootModel">
+        <backgroundColor reference="../../backgroundColor"/>
+        <foregroundColor reference="../../foregroundColor"/>
+        <showIcon>true</showIcon>
+        <listeners serialization="custom">
+          <java.beans.PropertyChangeSupport>
+            <default>
+              <source class="net.java.amateras.uml.model.RootModel" reference="../../../.."/>
+              <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+            </default>
+            <null/>
+          </java.beans.PropertyChangeSupport>
+        </listeners>
+        <sourceConnections/>
+        <targetConnections/>
+        <children>
+          <net.java.amateras.uml.model.NoteModel reference="../../.."/>
+          <net.java.amateras.uml.model.NoteModel>
+            <backgroundColor reference="../../../../backgroundColor"/>
+            <foregroundColor reference="../../../../foregroundColor"/>
+            <showIcon>true</showIcon>
+            <parent class="net.java.amateras.uml.model.RootModel" reference="../../.."/>
+            <listeners serialization="custom">
+              <java.beans.PropertyChangeSupport>
+                <default>
+                  <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                </default>
+                <null/>
+              </java.beans.PropertyChangeSupport>
+            </listeners>
+            <constraint>
+              <height>41</height>
+              <width>133</width>
+              <x>292</x>
+              <y>93</y>
+            </constraint>
+            <sourceConnections/>
+            <targetConnections>
+              <net.java.amateras.uml.model.AnchorModel>
+                <showIcon>true</showIcon>
+                <listeners serialization="custom">
+                  <java.beans.PropertyChangeSupport>
+                    <default>
+                      <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                      <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                    </default>
+                    <null/>
+                  </java.beans.PropertyChangeSupport>
+                </listeners>
+                <source class="net.java.amateras.uml.model.NoteModel" reference="../../../../../.."/>
+                <target class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                <bendpoints/>
+              </net.java.amateras.uml.model.AnchorModel>
+            </targetConnections>
+            <children/>
+            <filterProperty/>
+            <content>Create New Home</content>
+            <old></old>
+          </net.java.amateras.uml.model.NoteModel>
+          <net.java.amateras.uml.model.NoteModel>
+            <backgroundColor reference="../../../../backgroundColor"/>
+            <foregroundColor reference="../../../../foregroundColor"/>
+            <showIcon>true</showIcon>
+            <parent class="net.java.amateras.uml.model.RootModel" reference="../../.."/>
+            <listeners serialization="custom">
+              <java.beans.PropertyChangeSupport>
+                <default>
+                  <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                </default>
+                <null/>
+              </java.beans.PropertyChangeSupport>
+            </listeners>
+            <constraint>
+              <height>30</height>
+              <width>131</width>
+              <x>294</x>
+              <y>187</y>
+            </constraint>
+            <sourceConnections>
+              <net.java.amateras.uml.model.AnchorModel>
+                <showIcon>true</showIcon>
+                <listeners serialization="custom">
+                  <java.beans.PropertyChangeSupport>
+                    <default>
+                      <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                      <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                    </default>
+                    <null/>
+                  </java.beans.PropertyChangeSupport>
+                </listeners>
+                <source class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                <target class="net.java.amateras.uml.classdiagram.model.InterfaceModel">
+                  <backgroundColor>
+                    <red>255</red>
+                    <green>255</green>
+                    <blue>206</blue>
+                  </backgroundColor>
+                  <foregroundColor>
+                    <red>0</red>
+                    <green>0</green>
+                    <blue>0</blue>
+                  </foregroundColor>
+                  <showIcon>true</showIcon>
+                  <parent class="net.java.amateras.uml.model.RootModel" reference="../../../../../../../../.."/>
+                  <listeners serialization="custom">
+                    <java.beans.PropertyChangeSupport>
+                      <default>
+                        <source class="net.java.amateras.uml.classdiagram.model.InterfaceModel" reference="../../../.."/>
+                        <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                      </default>
+                      <null/>
+                    </java.beans.PropertyChangeSupport>
+                  </listeners>
+                  <constraint>
+                    <height>-1</height>
+                    <width>-1</width>
+                    <x>444</x>
+                    <y>175</y>
+                  </constraint>
+                  <sourceConnections/>
+                  <targetConnections>
+                    <net.java.amateras.uml.model.AnchorModel reference="../../.."/>
+                  </targetConnections>
+                  <children>
+                    <net.java.amateras.uml.classdiagram.model.OperationModel>
+                      <showIcon>true</showIcon>
+                      <parent class="net.java.amateras.uml.classdiagram.model.InterfaceModel" reference="../../.."/>
+                      <listeners serialization="custom">
+                        <java.beans.PropertyChangeSupport>
+                          <default>
+                            <source class="net.java.amateras.uml.classdiagram.model.OperationModel" reference="../../../.."/>
+                            <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                          </default>
+                          <null/>
+                        </java.beans.PropertyChangeSupport>
+                      </listeners>
+                      <visibility class="net.java.amateras.uml.classdiagram.model.Visibility$1"/>
+                      <name>showOpenDialog</name>
+                      <type>String</type>
+                      <params>
+                        <net.java.amateras.uml.classdiagram.model.Argument>
+                          <name>parentView</name>
+                          <type>View</type>
+                        </net.java.amateras.uml.classdiagram.model.Argument>
+                        <net.java.amateras.uml.classdiagram.model.Argument>
+                          <name>dialogTitle</name>
+                          <type>String</type>
+                        </net.java.amateras.uml.classdiagram.model.Argument>
+                        <net.java.amateras.uml.classdiagram.model.Argument>
+                          <name>contentType</name>
+                          <type>ContentType</type>
+                        </net.java.amateras.uml.classdiagram.model.Argument>
+                      </params>
+                      <isAbstract>true</isAbstract>
+                      <isStatic>false</isStatic>
+                    </net.java.amateras.uml.classdiagram.model.OperationModel>
+                  </children>
+                  <filterProperty/>
+                  <propertyDescriptors>
+                    <org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                      <id class="string">_stereo_type</id>
+                      <display>Stereo Type</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                    <org.eclipse.ui.views.properties.PropertyDescriptor>
+                      <id class="string">_simpleEntityName</id>
+                      <display>Simple Name</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.PropertyDescriptor>
+                    <org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                      <id class="string">_entityName</id>
+                      <display>Name</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                    <org.eclipse.ui.views.properties.ColorPropertyDescriptor>
+                      <id class="string">_background</id>
+                      <display>Background Color</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.ColorPropertyDescriptor>
+                    <org.eclipse.ui.views.properties.PropertyDescriptor>
+                      <id class="string">_attrs</id>
+                      <display>Attributes...</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.PropertyDescriptor>
+                    <org.eclipse.ui.views.properties.PropertyDescriptor>
+                      <id class="string">_operations</id>
+                      <display>Operations...</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.PropertyDescriptor>
+                  </propertyDescriptors>
+                  <stereoType></stereoType>
+                  <name>com.eteks.sweethome3d.viewcontroller.ContentManager</name>
+                </target>
+                <bendpoints/>
+              </net.java.amateras.uml.model.AnchorModel>
+            </sourceConnections>
+            <targetConnections>
+              <net.java.amateras.uml.model.AnchorModel>
+                <showIcon>true</showIcon>
+                <listeners serialization="custom">
+                  <java.beans.PropertyChangeSupport>
+                    <default>
+                      <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                      <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                    </default>
+                    <null/>
+                  </java.beans.PropertyChangeSupport>
+                </listeners>
+                <source class="net.java.amateras.uml.model.NoteModel" reference="../../../../../.."/>
+                <target class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                <bendpoints/>
+              </net.java.amateras.uml.model.AnchorModel>
+            </targetConnections>
+            <children/>
+            <filterProperty/>
+            <content>Open saved home</content>
+            <old></old>
+          </net.java.amateras.uml.model.NoteModel>
+          <net.java.amateras.uml.model.NoteModel>
+            <backgroundColor reference="../../../../backgroundColor"/>
+            <foregroundColor reference="../../../../foregroundColor"/>
+            <showIcon>true</showIcon>
+            <parent class="net.java.amateras.uml.model.RootModel" reference="../../../../../.."/>
+            <listeners serialization="custom">
+              <java.beans.PropertyChangeSupport>
+                <default>
+                  <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                </default>
+                <null/>
+              </java.beans.PropertyChangeSupport>
+            </listeners>
+            <constraint>
+              <height>30</height>
+              <width>129</width>
+              <x>459</x>
+              <y>240</y>
+            </constraint>
+            <sourceConnections/>
+            <targetConnections/>
+            <children/>
+            <filterProperty/>
+            <content>Choose file location</content>
+            <old></old>
+          </net.java.amateras.uml.model.NoteModel>
+          <net.java.amateras.uml.model.NoteModel>
+            <backgroundColor reference="../../../../backgroundColor"/>
+            <foregroundColor reference="../../../../foregroundColor"/>
+            <showIcon>true</showIcon>
+            <parent class="net.java.amateras.uml.model.RootModel" reference="../../.."/>
+            <listeners serialization="custom">
+              <java.beans.PropertyChangeSupport>
+                <default>
+                  <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                </default>
+                <null/>
+              </java.beans.PropertyChangeSupport>
+            </listeners>
+            <constraint>
+              <height>30</height>
+              <width>100</width>
+              <x>291</x>
+              <y>266</y>
+            </constraint>
+            <sourceConnections>
+              <net.java.amateras.uml.model.AnchorModel>
+                <showIcon>true</showIcon>
+                <listeners serialization="custom">
+                  <java.beans.PropertyChangeSupport>
+                    <default>
+                      <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                      <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                    </default>
+                    <null/>
+                  </java.beans.PropertyChangeSupport>
+                </listeners>
+                <source class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                <target class="net.java.amateras.uml.classdiagram.model.InterfaceModel">
+                  <backgroundColor>
+                    <red>255</red>
+                    <green>255</green>
+                    <blue>206</blue>
+                  </backgroundColor>
+                  <foregroundColor>
+                    <red>0</red>
+                    <green>0</green>
+                    <blue>0</blue>
+                  </foregroundColor>
+                  <showIcon>true</showIcon>
+                  <parent class="net.java.amateras.uml.model.RootModel">
+                    <backgroundColor reference="../../backgroundColor"/>
+                    <foregroundColor reference="../../foregroundColor"/>
+                    <showIcon>true</showIcon>
+                    <listeners serialization="custom">
+                      <java.beans.PropertyChangeSupport>
+                        <default>
+                          <source class="net.java.amateras.uml.model.RootModel" reference="../../../.."/>
+                          <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                        </default>
+                        <null/>
+                      </java.beans.PropertyChangeSupport>
+                    </listeners>
+                    <sourceConnections/>
+                    <targetConnections/>
+                    <children>
+                      <net.java.amateras.uml.model.NoteModel reference="../../../../../../../../.."/>
+                      <net.java.amateras.uml.model.NoteModel reference="../../../../../../../net.java.amateras.uml.model.NoteModel[2]"/>
+                      <net.java.amateras.uml.model.NoteModel reference="../../../../../../../net.java.amateras.uml.model.NoteModel[3]"/>
+                      <net.java.amateras.uml.model.NoteModel reference="../../../../../../../net.java.amateras.uml.model.NoteModel[4]"/>
+                      <net.java.amateras.uml.model.NoteModel reference="../../../../../.."/>
+                      <net.java.amateras.uml.model.NoteModel>
+                        <backgroundColor reference="../../../../../../../../../../backgroundColor"/>
+                        <foregroundColor reference="../../../../../../../../../../foregroundColor"/>
+                        <showIcon>true</showIcon>
+                        <parent class="net.java.amateras.uml.model.RootModel" reference="../../../../../../../../.."/>
+                        <listeners serialization="custom">
+                          <java.beans.PropertyChangeSupport>
+                            <default>
+                              <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+                              <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                            </default>
+                            <null/>
+                          </java.beans.PropertyChangeSupport>
+                        </listeners>
+                        <constraint>
+                          <height>45</height>
+                          <width>102</width>
+                          <x>297</x>
+                          <y>327</y>
+                        </constraint>
+                        <sourceConnections/>
+                        <targetConnections>
+                          <net.java.amateras.uml.model.AnchorModel>
+                            <showIcon>true</showIcon>
+                            <listeners serialization="custom">
+                              <java.beans.PropertyChangeSupport>
+                                <default>
+                                  <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                                </default>
+                                <null/>
+                              </java.beans.PropertyChangeSupport>
+                            </listeners>
+                            <source class="net.java.amateras.uml.model.NoteModel" reference="../../../../../../../../../../../.."/>
+                            <target class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                            <bendpoints/>
+                          </net.java.amateras.uml.model.AnchorModel>
+                          <net.java.amateras.uml.model.AnchorModel>
+                            <showIcon>true</showIcon>
+                            <listeners serialization="custom">
+                              <java.beans.PropertyChangeSupport>
+                                <default>
+                                  <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                                </default>
+                                <null/>
+                              </java.beans.PropertyChangeSupport>
+                            </listeners>
+                            <source class="net.java.amateras.uml.model.NoteModel">
+                              <backgroundColor reference="../../../../../../../../../../../../../backgroundColor"/>
+                              <foregroundColor reference="../../../../../../../../../../../../../foregroundColor"/>
+                              <showIcon>true</showIcon>
+                              <parent class="net.java.amateras.uml.model.RootModel" reference="../../../../../../../../../../../.."/>
+                              <listeners serialization="custom">
+                                <java.beans.PropertyChangeSupport>
+                                  <default>
+                                    <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+                                    <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                                  </default>
+                                  <null/>
+                                </java.beans.PropertyChangeSupport>
+                              </listeners>
+                              <constraint>
+                                <height>30</height>
+                                <width>100</width>
+                                <x>304</x>
+                                <y>414</y>
+                              </constraint>
+                              <sourceConnections>
+                                <net.java.amateras.uml.model.AnchorModel reference="../../.."/>
+                                <net.java.amateras.uml.model.AnchorModel>
+                                  <showIcon>true</showIcon>
+                                  <listeners serialization="custom">
+                                    <java.beans.PropertyChangeSupport>
+                                      <default>
+                                        <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                                        <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                                      </default>
+                                      <null/>
+                                    </java.beans.PropertyChangeSupport>
+                                  </listeners>
+                                  <source class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                                  <target class="net.java.amateras.uml.classdiagram.model.ClassModel">
+                                    <backgroundColor>
+                                      <red>255</red>
+                                      <green>255</green>
+                                      <blue>206</blue>
+                                    </backgroundColor>
+                                    <foregroundColor>
+                                      <red>0</red>
+                                      <green>0</green>
+                                      <blue>0</blue>
+                                    </foregroundColor>
+                                    <showIcon>true</showIcon>
+                                    <parent class="net.java.amateras.uml.model.RootModel" reference="../../../../../../../../../../../../../../../../../.."/>
+                                    <listeners serialization="custom">
+                                      <java.beans.PropertyChangeSupport>
+                                        <default>
+                                          <source class="net.java.amateras.uml.classdiagram.model.ClassModel" reference="../../../.."/>
+                                          <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                                        </default>
+                                        <null/>
+                                      </java.beans.PropertyChangeSupport>
+                                    </listeners>
+                                    <constraint>
+                                      <height>-1</height>
+                                      <width>-1</width>
+                                      <x>442</x>
+                                      <y>407</y>
+                                    </constraint>
+                                    <sourceConnections/>
+                                    <targetConnections>
+                                      <net.java.amateras.uml.model.AnchorModel reference="../../.."/>
+                                    </targetConnections>
+                                    <children>
+                                      <net.java.amateras.uml.classdiagram.model.OperationModel>
+                                        <backgroundColor reference="../../../backgroundColor"/>
+                                        <foregroundColor reference="../../../foregroundColor"/>
+                                        <showIcon>true</showIcon>
+                                        <parent class="net.java.amateras.uml.classdiagram.model.ClassModel" reference="../../.."/>
+                                        <listeners serialization="custom">
+                                          <java.beans.PropertyChangeSupport>
+                                            <default>
+                                              <source class="net.java.amateras.uml.classdiagram.model.OperationModel" reference="../../../.."/>
+                                              <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                                            </default>
+                                            <null/>
+                                          </java.beans.PropertyChangeSupport>
+                                        </listeners>
+                                        <visibility class="net.java.amateras.uml.classdiagram.model.Visibility$1"/>
+                                        <name>print</name>
+                                        <type>int</type>
+                                        <params>
+                                          <net.java.amateras.uml.classdiagram.model.Argument>
+                                            <name>g</name>
+                                            <type>Graphics</type>
+                                          </net.java.amateras.uml.classdiagram.model.Argument>
+                                          <net.java.amateras.uml.classdiagram.model.Argument>
+                                            <name>pageFormat</name>
+                                            <type>PageFormat</type>
+                                          </net.java.amateras.uml.classdiagram.model.Argument>
+                                          <net.java.amateras.uml.classdiagram.model.Argument>
+                                            <name>page</name>
+                                            <type>int</type>
+                                          </net.java.amateras.uml.classdiagram.model.Argument>
+                                        </params>
+                                        <isAbstract>false</isAbstract>
+                                        <isStatic>false</isStatic>
+                                      </net.java.amateras.uml.classdiagram.model.OperationModel>
+                                    </children>
+                                    <filterProperty/>
+                                    <propertyDescriptors>
+                                      <org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                                        <id class="string">_stereo_type</id>
+                                        <display>Stereo Type</display>
+                                        <incompatible>false</incompatible>
+                                      </org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                                      <org.eclipse.ui.views.properties.PropertyDescriptor>
+                                        <id class="string">_simpleEntityName</id>
+                                        <display>Simple Name</display>
+                                        <incompatible>false</incompatible>
+                                      </org.eclipse.ui.views.properties.PropertyDescriptor>
+                                      <org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                                        <id class="string">_entityName</id>
+                                        <display>Name</display>
+                                        <incompatible>false</incompatible>
+                                      </org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                                      <org.eclipse.ui.views.properties.ColorPropertyDescriptor>
+                                        <id class="string">_background</id>
+                                        <display>Background Color</display>
+                                        <incompatible>false</incompatible>
+                                      </org.eclipse.ui.views.properties.ColorPropertyDescriptor>
+                                      <org.eclipse.ui.views.properties.PropertyDescriptor>
+                                        <id class="string">_attrs</id>
+                                        <display>Attributes...</display>
+                                        <incompatible>false</incompatible>
+                                      </org.eclipse.ui.views.properties.PropertyDescriptor>
+                                      <org.eclipse.ui.views.properties.PropertyDescriptor>
+                                        <id class="string">_operations</id>
+                                        <display>Operations...</display>
+                                        <incompatible>false</incompatible>
+                                      </org.eclipse.ui.views.properties.PropertyDescriptor>
+                                      <net.java.amateras.uml.properties.BooleanPropertyDescriptor>
+                                        <id class="string">_abstract</id>
+                                        <display>abstract</display>
+                                        <incompatible>false</incompatible>
+                                      </net.java.amateras.uml.properties.BooleanPropertyDescriptor>
+                                    </propertyDescriptors>
+                                    <stereoType></stereoType>
+                                    <name>com.eteks.sweethome3d.swing.HomePrintableComponent</name>
+                                    <isAbstract>false</isAbstract>
+                                  </target>
+                                  <bendpoints/>
+                                </net.java.amateras.uml.model.AnchorModel>
+                              </sourceConnections>
+                              <targetConnections>
+                                <net.java.amateras.uml.model.AnchorModel>
+                                  <showIcon>true</showIcon>
+                                  <listeners serialization="custom">
+                                    <java.beans.PropertyChangeSupport>
+                                      <default>
+                                        <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                                        <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                                      </default>
+                                      <null/>
+                                    </java.beans.PropertyChangeSupport>
+                                  </listeners>
+                                  <source class="net.java.amateras.uml.model.NoteModel" reference="../../../../../../../../../../../../../../.."/>
+                                  <target class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                                  <bendpoints/>
+                                </net.java.amateras.uml.model.AnchorModel>
+                              </targetConnections>
+                              <children/>
+                              <filterProperty/>
+                              <content>Print File</content>
+                              <old></old>
+                            </source>
+                            <target class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                            <bendpoints/>
+                          </net.java.amateras.uml.model.AnchorModel>
+                        </targetConnections>
+                        <children/>
+                        <filterProperty/>
+                        <content>Access print settings</content>
+                        <old>Change Print settings&#xd;
+</old>
+                      </net.java.amateras.uml.model.NoteModel>
+                      <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel[6]/targetConnections/net.java.amateras.uml.model.AnchorModel[2]/source"/>
+                      <net.java.amateras.uml.classdiagram.model.InterfaceModel reference="../../.."/>
+                    </children>
+                    <filterProperty/>
+                  </parent>
+                  <listeners serialization="custom">
+                    <java.beans.PropertyChangeSupport>
+                      <default>
+                        <source class="net.java.amateras.uml.classdiagram.model.InterfaceModel" reference="../../../.."/>
+                        <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                      </default>
+                      <null/>
+                    </java.beans.PropertyChangeSupport>
+                  </listeners>
+                  <constraint>
+                    <height>-1</height>
+                    <width>-1</width>
+                    <x>406</x>
+                    <y>255</y>
+                  </constraint>
+                  <sourceConnections/>
+                  <targetConnections>
+                    <net.java.amateras.uml.model.AnchorModel reference="../../.."/>
+                  </targetConnections>
+                  <children>
+                    <net.java.amateras.uml.classdiagram.model.OperationModel>
+                      <backgroundColor reference="../../../backgroundColor"/>
+                      <foregroundColor reference="../../../foregroundColor"/>
+                      <showIcon>true</showIcon>
+                      <parent class="net.java.amateras.uml.classdiagram.model.InterfaceModel" reference="../../.."/>
+                      <listeners serialization="custom">
+                        <java.beans.PropertyChangeSupport>
+                          <default>
+                            <source class="net.java.amateras.uml.classdiagram.model.OperationModel" reference="../../../.."/>
+                            <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                          </default>
+                          <null/>
+                        </java.beans.PropertyChangeSupport>
+                      </listeners>
+                      <visibility class="net.java.amateras.uml.classdiagram.model.Visibility$1" reference="../../../../../../../net.java.amateras.uml.model.NoteModel[3]/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/children/net.java.amateras.uml.classdiagram.model.OperationModel/visibility"/>
+                      <name>showSaveDialog</name>
+                      <type>String</type>
+                      <params>
+                        <net.java.amateras.uml.classdiagram.model.Argument>
+                          <name>parentView</name>
+                          <type>View</type>
+                        </net.java.amateras.uml.classdiagram.model.Argument>
+                        <net.java.amateras.uml.classdiagram.model.Argument>
+                          <name>dialogTitle</name>
+                          <type>String</type>
+                        </net.java.amateras.uml.classdiagram.model.Argument>
+                        <net.java.amateras.uml.classdiagram.model.Argument>
+                          <name>contentType</name>
+                          <type>ContentType</type>
+                        </net.java.amateras.uml.classdiagram.model.Argument>
+                        <net.java.amateras.uml.classdiagram.model.Argument>
+                          <name>location</name>
+                          <type>String</type>
+                        </net.java.amateras.uml.classdiagram.model.Argument>
+                      </params>
+                      <isAbstract>true</isAbstract>
+                      <isStatic>false</isStatic>
+                    </net.java.amateras.uml.classdiagram.model.OperationModel>
+                  </children>
+                  <filterProperty/>
+                  <propertyDescriptors>
+                    <org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                      <id class="string">_stereo_type</id>
+                      <display>Stereo Type</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                    <org.eclipse.ui.views.properties.PropertyDescriptor>
+                      <id class="string">_simpleEntityName</id>
+                      <display>Simple Name</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.PropertyDescriptor>
+                    <org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                      <id class="string">_entityName</id>
+                      <display>Name</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.TextPropertyDescriptor>
+                    <org.eclipse.ui.views.properties.ColorPropertyDescriptor>
+                      <id class="string">_background</id>
+                      <display>Background Color</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.ColorPropertyDescriptor>
+                    <org.eclipse.ui.views.properties.PropertyDescriptor>
+                      <id class="string">_attrs</id>
+                      <display>Attributes...</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.PropertyDescriptor>
+                    <org.eclipse.ui.views.properties.PropertyDescriptor>
+                      <id class="string">_operations</id>
+                      <display>Operations...</display>
+                      <incompatible>false</incompatible>
+                    </org.eclipse.ui.views.properties.PropertyDescriptor>
+                  </propertyDescriptors>
+                  <stereoType></stereoType>
+                  <name>com.eteks.sweethome3d.viewcontroller.ContentManager</name>
+                </target>
+                <bendpoints/>
+              </net.java.amateras.uml.model.AnchorModel>
+            </sourceConnections>
+            <targetConnections>
+              <net.java.amateras.uml.model.AnchorModel>
+                <showIcon>true</showIcon>
+                <listeners serialization="custom">
+                  <java.beans.PropertyChangeSupport>
+                    <default>
+                      <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                      <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                    </default>
+                    <null/>
+                  </java.beans.PropertyChangeSupport>
+                </listeners>
+                <source class="net.java.amateras.uml.model.NoteModel" reference="../../../../../.."/>
+                <target class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                <bendpoints/>
+              </net.java.amateras.uml.model.AnchorModel>
+            </targetConnections>
+            <children/>
+            <filterProperty/>
+            <content>Save home</content>
+            <old></old>
+          </net.java.amateras.uml.model.NoteModel>
+          <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel[5]/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/parent/children/net.java.amateras.uml.model.NoteModel[6]"/>
+          <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel[5]/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/parent/children/net.java.amateras.uml.model.NoteModel[6]/targetConnections/net.java.amateras.uml.model.AnchorModel[2]/source"/>
+        </children>
+        <filterProperty/>
+      </parent>
+      <listeners serialization="custom">
+        <java.beans.PropertyChangeSupport>
+          <default>
+            <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+            <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+          </default>
+          <null/>
+        </java.beans.PropertyChangeSupport>
+      </listeners>
+      <constraint>
+        <height>65</height>
+        <width>125</width>
+        <x>90</x>
+        <y>240</y>
+      </constraint>
+      <sourceConnections>
+        <net.java.amateras.uml.model.AnchorModel reference="../../parent/children/net.java.amateras.uml.model.NoteModel[2]/targetConnections/net.java.amateras.uml.model.AnchorModel"/>
+        <net.java.amateras.uml.model.AnchorModel reference="../../parent/children/net.java.amateras.uml.model.NoteModel[3]/targetConnections/net.java.amateras.uml.model.AnchorModel"/>
+        <net.java.amateras.uml.model.AnchorModel reference="../../parent/children/net.java.amateras.uml.model.NoteModel[5]/targetConnections/net.java.amateras.uml.model.AnchorModel"/>
+        <net.java.amateras.uml.model.AnchorModel reference="../../parent/children/net.java.amateras.uml.model.NoteModel[5]/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/parent/children/net.java.amateras.uml.model.NoteModel[6]/targetConnections/net.java.amateras.uml.model.AnchorModel"/>
+        <net.java.amateras.uml.model.AnchorModel reference="../../parent/children/net.java.amateras.uml.model.NoteModel[5]/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/parent/children/net.java.amateras.uml.model.NoteModel[6]/targetConnections/net.java.amateras.uml.model.AnchorModel[2]/source/targetConnections/net.java.amateras.uml.model.AnchorModel"/>
+      </sourceConnections>
+      <targetConnections>
+        <net.java.amateras.uml.model.AnchorModel>
+          <showIcon>true</showIcon>
+          <listeners serialization="custom">
+            <java.beans.PropertyChangeSupport>
+              <default>
+                <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+              </default>
+              <null/>
+            </java.beans.PropertyChangeSupport>
+          </listeners>
+          <source class="net.java.amateras.uml.model.NoteModel">
+            <backgroundColor reference="../../../../../../backgroundColor"/>
+            <foregroundColor reference="../../../../../../foregroundColor"/>
+            <showIcon>true</showIcon>
+            <parent class="net.java.amateras.uml.model.RootModel" reference="../../../../../.."/>
+            <listeners serialization="custom">
+              <java.beans.PropertyChangeSupport>
+                <default>
+                  <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                </default>
+                <null/>
+              </java.beans.PropertyChangeSupport>
+            </listeners>
+            <constraint>
+              <height>77</height>
+              <width>100</width>
+              <x>291</x>
+              <y>488</y>
+            </constraint>
+            <sourceConnections>
+              <net.java.amateras.uml.model.AnchorModel>
+                <showIcon>true</showIcon>
+                <listeners serialization="custom">
+                  <java.beans.PropertyChangeSupport>
+                    <default>
+                      <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                      <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                    </default>
+                    <null/>
+                  </java.beans.PropertyChangeSupport>
+                </listeners>
+                <source class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                <target class="net.java.amateras.uml.model.NoteModel">
+                  <backgroundColor reference="../../../../../../../../../backgroundColor"/>
+                  <foregroundColor reference="../../../../../../../../../foregroundColor"/>
+                  <showIcon>true</showIcon>
+                  <parent class="net.java.amateras.uml.model.RootModel" reference="../../../../../../../../.."/>
+                  <listeners serialization="custom">
+                    <java.beans.PropertyChangeSupport>
+                      <default>
+                        <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+                        <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                      </default>
+                      <null/>
+                    </java.beans.PropertyChangeSupport>
+                  </listeners>
+                  <constraint>
+                    <height>41</height>
+                    <width>100</width>
+                    <x>434</x>
+                    <y>497</y>
+                  </constraint>
+                  <sourceConnections>
+                    <net.java.amateras.uml.model.AnchorModel>
+                      <showIcon>true</showIcon>
+                      <listeners serialization="custom">
+                        <java.beans.PropertyChangeSupport>
+                          <default>
+                            <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                            <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                          </default>
+                          <null/>
+                        </java.beans.PropertyChangeSupport>
+                      </listeners>
+                      <source class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                      <target class="net.java.amateras.uml.model.NoteModel">
+                        <backgroundColor reference="../../../../../../../../../../../../backgroundColor"/>
+                        <foregroundColor reference="../../../../../../../../../../../../foregroundColor"/>
+                        <showIcon>true</showIcon>
+                        <parent class="net.java.amateras.uml.model.RootModel" reference="../../../../../../../../../../../.."/>
+                        <listeners serialization="custom">
+                          <java.beans.PropertyChangeSupport>
+                            <default>
+                              <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+                              <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                            </default>
+                            <null/>
+                          </java.beans.PropertyChangeSupport>
+                        </listeners>
+                        <constraint>
+                          <height>41</height>
+                          <width>100</width>
+                          <x>572</x>
+                          <y>496</y>
+                        </constraint>
+                        <sourceConnections>
+                          <net.java.amateras.uml.model.AnchorModel>
+                            <showIcon>true</showIcon>
+                            <listeners serialization="custom">
+                              <java.beans.PropertyChangeSupport>
+                                <default>
+                                  <source class="net.java.amateras.uml.model.AnchorModel" reference="../../../.."/>
+                                  <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                                </default>
+                                <null/>
+                              </java.beans.PropertyChangeSupport>
+                            </listeners>
+                            <source class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+                            <target class="net.java.amateras.uml.model.NoteModel">
+                              <backgroundColor reference="../../../../../../../../../../../../../../../backgroundColor"/>
+                              <foregroundColor reference="../../../../../../../../../../../../../../../foregroundColor"/>
+                              <showIcon>true</showIcon>
+                              <parent class="net.java.amateras.uml.model.RootModel" reference="../../../../../../../../../../../../../../.."/>
+                              <listeners serialization="custom">
+                                <java.beans.PropertyChangeSupport>
+                                  <default>
+                                    <source class="net.java.amateras.uml.model.NoteModel" reference="../../../.."/>
+                                    <propertyChangeSupportSerializedDataVersion>2</propertyChangeSupportSerializedDataVersion>
+                                  </default>
+                                  <null/>
+                                </java.beans.PropertyChangeSupport>
+                              </listeners>
+                              <constraint>
+                                <height>30</height>
+                                <width>100</width>
+                                <x>694</x>
+                                <y>505</y>
+                              </constraint>
+                              <sourceConnections/>
+                              <targetConnections>
+                                <net.java.amateras.uml.model.AnchorModel reference="../../.."/>
+                              </targetConnections>
+                              <children/>
+                              <filterProperty/>
+                              <content>PDF is printed</content>
+                              <old></old>
+                            </target>
+                            <bendpoints/>
+                          </net.java.amateras.uml.model.AnchorModel>
+                        </sourceConnections>
+                        <targetConnections>
+                          <net.java.amateras.uml.model.AnchorModel reference="../../.."/>
+                        </targetConnections>
+                        <children/>
+                        <filterProperty/>
+                        <content>Choose a save directory</content>
+                        <old></old>
+                      </target>
+                      <bendpoints/>
+                    </net.java.amateras.uml.model.AnchorModel>
+                  </sourceConnections>
+                  <targetConnections>
+                    <net.java.amateras.uml.model.AnchorModel reference="../../.."/>
+                  </targetConnections>
+                  <children/>
+                  <filterProperty/>
+                  <content>Choose what will be printed</content>
+                  <old></old>
+                </target>
+                <bendpoints/>
+              </net.java.amateras.uml.model.AnchorModel>
+              <net.java.amateras.uml.model.AnchorModel reference="../../.."/>
+            </sourceConnections>
+            <targetConnections/>
+            <children/>
+            <filterProperty/>
+            <content>Enhancement:&#xd;
+Print to PDF</content>
+            <old></old>
+          </source>
+          <target class="net.java.amateras.uml.model.NoteModel" reference="../../.."/>
+          <bendpoints/>
+        </net.java.amateras.uml.model.AnchorModel>
+      </targetConnections>
+      <children/>
+      <filterProperty/>
+      <content>User</content>
+      <old>Sweet Home 3D Program</old>
+    </net.java.amateras.uml.model.NoteModel>
+    <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel/parent/children/net.java.amateras.uml.model.NoteModel[2]"/>
+    <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel/parent/children/net.java.amateras.uml.model.NoteModel[3]"/>
+    <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel/parent/children/net.java.amateras.uml.model.NoteModel[5]"/>
+    <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel/parent/children/net.java.amateras.uml.model.NoteModel[5]/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/parent/children/net.java.amateras.uml.model.NoteModel[6]"/>
+    <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel/parent/children/net.java.amateras.uml.model.NoteModel[5]/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/parent/children/net.java.amateras.uml.model.NoteModel[6]/targetConnections/net.java.amateras.uml.model.AnchorModel[2]/source"/>
+    <net.java.amateras.uml.classdiagram.model.InterfaceModel reference="../net.java.amateras.uml.model.NoteModel/parent/children/net.java.amateras.uml.model.NoteModel[5]/sourceConnections/net.java.amateras.uml.model.AnchorModel/target"/>
+    <net.java.amateras.uml.classdiagram.model.ClassModel reference="../net.java.amateras.uml.model.NoteModel/parent/children/net.java.amateras.uml.model.NoteModel[5]/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/parent/children/net.java.amateras.uml.model.NoteModel[6]/targetConnections/net.java.amateras.uml.model.AnchorModel[2]/source/sourceConnections/net.java.amateras.uml.model.AnchorModel[2]/target"/>
+    <net.java.amateras.uml.classdiagram.model.InterfaceModel reference="../net.java.amateras.uml.model.NoteModel/parent/children/net.java.amateras.uml.model.NoteModel[3]/sourceConnections/net.java.amateras.uml.model.AnchorModel/target"/>
+    <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel/targetConnections/net.java.amateras.uml.model.AnchorModel/source"/>
+    <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel/targetConnections/net.java.amateras.uml.model.AnchorModel/source/sourceConnections/net.java.amateras.uml.model.AnchorModel/target"/>
+    <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel/targetConnections/net.java.amateras.uml.model.AnchorModel/source/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/sourceConnections/net.java.amateras.uml.model.AnchorModel/target"/>
+    <net.java.amateras.uml.model.NoteModel reference="../net.java.amateras.uml.model.NoteModel/targetConnections/net.java.amateras.uml.model.AnchorModel/source/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/sourceConnections/net.java.amateras.uml.model.AnchorModel/target/sourceConnections/net.java.amateras.uml.model.AnchorModel/target"/>
+  </children>
+  <filterProperty/>
+</net.java.amateras.uml.model.RootModel>
\ No newline at end of file