Using shapes in Max

Hi all,

I'm working on a project that requires the user to insert and manipulate a rectangle (dragging, resizing etc.) in a space. From this, I also need it to output position data (x,y,z coordinates or similar), as it will spatially manipulate audio in some way. Have been researching into [lcd] and some jitter stuff (although my knowledge on jitter is limited).

Any ideas on how this could be implemented?

Cheers
Harry