Topic Title

It would be great to be able to use the "Mask" function that's available in the delete, move, etc. modes. I often want to stretch something but it intersects with something else that is on the same layer but is a different color from the other object. Since they are different colors, the mask would allow me to stretch only the item I want to stretch. Currently I have to move the item instead, then clean up the lines, then move the vertex if it's hatched.

This too should be on the main wishlist, and one I really am hoping for

This might work better if the mask could be set to exclude certain colors instead of including only certain ones. So the action would be to stretch all except the *cyan* entities.

I'm sure Dave & crew could add a invert button pretty easy, but what do I know.