+
+ <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"/>
+ </feature>