Export with hierarchy

Hello

I have made a model with many parts in groups and i would like to export it to FreeCAD so that colleagues could remove the parts or replace them and generealy move them around. If i export to stl and then convert it, it merges together into one mesh which is not good for me because obviously that cant be moved with. Is there a way to export from sketchup keeping the hierarchy or at least the groups separated?

Thank you.

Have you tried to import collada files (DAE)?