+ <validator id="CollectionPlugin_FieldValidator"/>
+ </feature>
+
+ <feature id="Group"
+ title="Group"
+ tooltip="Create named collection of geometry entities"
+ icon="icons/Collection/shape_group.png"
+ apply_continue="true"
+ helpfile="groupFeature.html">
+ <source path="group_widget.xml"/>
+ </feature>
+
+ <feature id="GroupAddition"
+ title="Group Addition"
+ tooltip="Join several groups to single group"
+ icon="icons/Collection/group_addition.png"
+ helpfile="groupAdditionFeature.html">
+ <source path="group_addition_widget.xml"/>
+ </feature>
+
+ <feature id="GroupIntersection"
+ title="Group Intersection"
+ tooltip="Get elements existing in all groups"
+ icon="icons/Collection/group_intersection.png"
+ helpfile="groupIntersectionFeature.html">
+ <source path="group_intersection_widget.xml"/>
+ </feature>
+
+ <feature id="GroupSubstraction"
+ title="Group Substraction"
+ tooltip="Exclude elements existing tool groups"
+ icon="icons/Collection/group_substraction.png"
+ helpfile="groupSubstractionFeature.html">
+ <source path="group_substraction_widget.xml"/>