Too bad this feature is not available in the original Millumin.

One way to handle some of these situations is to map corner points to the screen corner points while maintaining shift. This in combination with Output / Transform / Shift and Scale can get you aligned to each separate screen.

Very surprised this feature has not yet been implemented given that it was PLANNED November 20 2012

My 3 votes remain locked on this very basic feature!

“right angle” (90 degree) snapping whilst moving corners in mapping mode. Or actual sliders/entery value faclilities.

agreed - seems an obvious oversight in what is otherwise a truly amazing program

Separate X and Y scale
It might look like this:

http://www.avd.ca/Millumin/SeperateXandYscale.jpg

X and Y would follow scale as a default. If X or Y was changed its value would be still change with scale but reflect the difference. The reset would effect all on this scale line.

Still want this basic feature. It would save so much work.

We need to add an X and a Y control to the panel. Will still need the scale control as it is.

I still want this bad

I'm assuming we are talking about keyframing X & Y independently, right?

I would use this on every setup

off course, very basic feature.