This would seem to be really simple, but I can’t find a good way to do it. I want to set up a slider in VDMX to increment by a fixed amount every time I hit a key. In this case, it’s move a static image up or down by one pixel with the arrow keys. It seems like the “Ratchet” Quartz plugin would have served this purpose in the past, but I can’t seem to find it anywhere now and the original message board posts about it have been deleted.
Right now I can only do this by making a video with the change I want frame-by-frame, and using the frame advance feature in the playback window, but it’s not ideal! Or else changing the value manually each time.