Place on WorkPlane
Enables you to place 2D objects on the current workplane.
1. Select the objects you want to move.
2. Select Modify / Place on Workplane. The objects are moved onto the current workplane.
This tool can be useful, for example, for objects that have been selected with the 3D Selector (see 2D-3D Selector) and moved from their original workplane. If you try using a 2D tool like Fillet on two lines that sit on different workplanes, the tool will not work; one of the lines must be moved to the workplane of the other.