How to setup Revit substitution for Twinmotion User Objects?

How can I substitute Revit families with User Objects in Twinmotion? On the Revit family table I only see the built in TM objects but I cant find my object. I see that my object has a different substitution table. I even copied it in the same folder with the standard table but I still cant find my object.

If I try to select the substitution table with my user object in TM, it doesnt let me and gives me this error message

Thanks !