Just bumped in a few issues today ..
Has it been requested to have backplates linked to camera's ? I think it has, but I just worked on a scene today where this would help a lot.
Also the toggle short-key command for the ground grid is still on my list.
yes - having the environment settings including backplates linked to camera views linked to the saved camera is on our list of things to do for KeyShot 4.
I love KS4 already ;D