When using the layered mode, you just bring in the layered M/E primary or secondary feed as a key source - the key signal will automatically follow. Turning on layered mode gets rid of the background sources on that partition, so the A/B or U1/U2 buses (which on the Kalypso have never had key signals of their own) go away. I've been after GV to allow the background buses to be used without the keys when in layered mode (I still want to do basic background transitions on A/B while I send out the 4 keys as a composite somewhere else), but I don't know if that's on their "to do" list.

Bob since layered mode is new now to the Kalypso, I had a question. If you are compositing keyers to bring to another ME, do you just key the ME, or because you need fill from out A, and key from out C, do you need to do a split key? Also it seems unlike the 4K, layered mode is now strictly used to bring keyers to another area of the board or to do what you mentioned about the aux buses above. You cannot use the bgd sources as keyers? thanks Bill

Unless you're running an M/E in Layered mode, the Kalypso M/E's do output a key signal from the M/E program streams. If your ARE running in Layered mode then the C & D outputs are the M/E's key signal. If you map an AUX bus to be a Video/Key pair (ENG / OUTPUTS menu), then any source that has a key signal (per the ENG / SOURCE DEFINITION menu) will output a key signal on the "B" side of the AUX. Any selected source that has been mapped as NONE for its key will output video on the "B" side of the AUX bus - this includes all M/E's that are NOT in Layered Mode.