ZoomISO v3 Feature Request Cropping

Cropping in ZoomISO v3 is a great feature. However, please add cropping capability of handles, and grabbing. So the user can mouse over the video frame and grab a frame handle to resize and zoom. Then grab the frame to move. The x/y slider control is too slow (but don’t replace it). See the UI design in Livestream Studio 6 for reference. 
BTW - great job on v3!!