i believe the feature kind of started, maybe not (STARTED) but first seriously implemented that i've seen with the SI-2K. It has this exact same mode that proved to be insanely useful. the best part about it was that you could remotely do it with their laptop system so the DP/camera op could just say, hey do it, and ur DIT would spin it up for them and they have their overlay shot and have a perfect match composition shot. i don't see why this couldn't be accomplished with wireless REDMOTE, or even wirelessly on your own macbook pro since the cameras are gonna have built in ethernet or wireless and what not. it gives you tons of flexibility, and would be amazing if they put it out on all their camera systems.