I wana make an openable box for a vr game in godot and im using the godot_xr_tools addon and i dont know where to start. i want it to open piece by piece like a real box like thers four litle panels that you need to lift but i dont know if i need to make a box with a skeleton in blender or how to lock the pivot points of each panel so that it rotates in the direction i want it to and how to pickup a part of a mesh and not the whole thing