ADDITIONAL UPDATE: OK, communication established, first draft of remote create with a few puzzles and problems. Took up too much time this morning talking to tech support that didn't know the product or the software. Their attitude: "you can't get there from here, sorry."

Then I accidentaly solved the problem (sending an AV PRESET command to my NAD prior to changing the input) by fiddling with the software.

Tonight I update the remote and see if the changes work.