Is it possible to set up a device so that when roll clip is active and on-air, the switcher will send 2 GPO triggers (one to eject current clip, second to roll clip)? I'm helping another station in our group set up with BitCentral Precis and Carbonite, and they want to eliminate the manual rolling of clips, but when one clip is still rolling in a channel, it must be ejected before rolling the next video.