jj,

That certainly helped to clear a lot up. When you learn from the oem into the 2116, you don't hold down the tape-1 device key. Your press it once to put the remote into tape mode. I would think unless you have a 2 deck cassette deck, you should only need maybe 6, and possibly up to 8 or 10 "tape functions". You could learn those to the transport keys on a device mode that doesn't use transport keys (like TV), or you could learn them to the transport keys of a new device key. If you can afford to use learning, you don't even need to worry about what that device key label is, or setting it to any setup code. Best guess is it'll be a tape, or even "vcr type" code, although it's possible that an audio code could be found to work it.. So, just learn record to the record button, pause to pause, play to play, etc. Don't do it for a device mode you're using that actually already uses those keys, like cd, which you have already defined.
Jim