Jon,
OK I think I figured it out. I assume that "parity" means that the code sent by the remote toggles between parity 1 and parity 0 (or even / odd, or whatever) with each successive button press. So I created two buttons for each number button on the remote. Labelled 1 and 1B, etc. I then trained Homeseer to learn each successive key press. The tricky part was not to press the key the second time as requested during the learn process. I used a different remote to send a dummy code ( I used the SAT enter button) at the verification step in the training process. [You have provided this information before in several previous posts]
This worked! Now I can change the channel to 111 by telling Homeseer to send the IR codes for button 1, 1B, 1. It seems to work fine.
I am still confused about how Homeseer uses zones and IR matching. It seems more complicated than it should be. I use 3 zones in my system and I use IR matching to control i-tunes via my universal remote. It has taken me a long time to get IR control of my 8 devices working but I love it when Homeseer adjusts the brightness of my TV 30 minutes after sunset. Or when the TV is automatically muted to make sure we hear the announcement that tomorrow is trash day! Thanks for the USBUIRT; it makes it all possible.
Steve