KicadStepUp — how to load board to exising FreeCAD project?

I did it in FreeCAD but, all CAD programs can do it.
The elements consist of a Cross-Section of the Ribbon and a Path.
The ‘Tool’ in CAD programs is referred to as a ‘Sweep’. Meaning, you sweep
the Cross-Section along the Path.
When done/exported, treat it a 3D model for a Footprint.

[EDIT} Just posted this with a link to Youtube video