Remove group with the "point" identifier. It should be unique, so can not be used here.
<group id="Basic">
<feature id="Sketch" text="New sketch" tooltip="Create a new sketch or edit an existing sketch" icon=":icons/sketch.png"/>
</group>
- <group id="Operations">
- <feature id="Point" text="New point" tooltip="Create a new point" icon=":icons/point.png">
- <doublevalue id="x" label="X:" min="0" max="" step="0.1" default="0"
- icon=":pictures/x_point.png" tooltip="Set X"/>
- <doublevalue id="y" label="Y:" min="0" max="" step="0.1" default="1"
- icon=":pictures/y_point.png" tooltip="Set Y"/>
- <doublevalue id="z" label="Z:" min="0" max="10" step="0.1" default="2"
- icon=":pictures/z_point.png" tooltip="Set Z"/>
- </feature>
- <feature id="Line" text="New line" tooltip="Create a new line" icon=":icons/line.png"/>
- </group>
</workbench>
</plugin>