+ <feature id="ExtrusionSketch" title="ExtrusionSketch" tooltip="Create a solids by extrusion of a sketch" icon=":icons/extrusionsketch.png">
+ <source path="extrusionsketch_widget.xml"/>
+ </feature>
+ <feature id="ExtrusionCut" title="ExtrusionCut" tooltip="" icon=":icons/extrusion_cut.png">
+ <source path="extrusioncut_widget.xml"/>
+ </feature>
+ <feature id="ExtrusionFuse" title="ExtrusionFuse" tooltip="" icon=":icons/extrusion_fuse.png">
+ <source path="extrusionfuse_widget.xml"/>
+ </feature>
+ </group>
+ <group id="Revolution">