I'm attaching here the installer dialog for the developer release of KiCAD (which is the soon next stable release): Special thanks to all the KiCAD librarians and all FreeCAD devs, maintainers, packagers and people at the forums for making this possible.
Many thanks also to all my friends that helped me here and at KiCad forum to improve the 'STEP' support in FreeCAD and the mechanical interchange.
I think this is a great achievement for FOSS and a big 'STEP' for ECAD/MCAD collaboration!

Maurice