Hi, let's imagine i have made 4 components, A, B, C and D. A and B are joined and saved as an assembly. C and D are joined in a method and saved in as an assembly. when i am working with C-D assembly and i inserted A-B assembly as new part from 'insert components', the functionality of A-B assembly does not work but C-D functionality works. why does that happen? how to make all assembly functions active? For example, if i put a cylinder in a cylindrical hole in a cube, i dont need a simulation to move that cylinder up and down. But if i add one more assembly to this assembly, the inserted assembly's function becomes inactive. How to activate all the functions?