I'd also like, optionally, to see the plan image of the 3D representation in the 2D tab and the 2D representation in the 3D tab when that is in Top view.
Maybe it is just me, but I have had problems in this kind of registration.
And while we are at it:
The logic of the insertion point should be reversed from the current perverse logic. Whatever objects you have, in whichever classes & hybrid components, the insertion point is what want to move, not everything in the symbol definition.