+ <feature id="SketchPoint" text="Point" tooltip="Create a new point" icon=":icons/point.png"/>
+ <feature id="SketchLine" text="Line" tooltip="Create a new line" icon=":icons/line.png">
+ <point_selector id="StartPoint" title="Start point" tooltip="Start point of the line"/>
+ <point_selector id="EndPoint" title="End point" tooltip="End point of the line"/>
+ </feature>
+ <feature id="SketchConstraintCoincidence" text="Points coincidence" tooltip="Create constraint for the coincidence of two points" internal="1"/>