Proportional scale of Corona Virtual buffer in interactive mode

Corona Corona for 3ds Max Feature Requests
1

Is possible to do proportional scale of VFB in interactive mode with dragging a corner and Shift shortcut/
I think this very usefull

2

Duplicate: Limit Interactive to Safe Frames - Corona for 3ds Max :: Requests - Chaos Forum
and here: Interactive rendering With show same frame option. - Corona for 3ds Max :: Requests - Chaos Forum