So… I read the first several words of your post and got excited that I had a workable answer- then proceeded to stop reading and went on to spend 5 mins crafting my response (below). While this does not at all address your question (which of course I discovered upon re-reading your post again) - I figured I’d go ahead and add this anyway- in the event it’s useful to someone else using the ‘search’ function.
I've got two of these in my media room. One is on the screen wall - to the left of the screen- that controls sconces on each side of the screen. The other is on the wall just to the left of the seats - and controls two can lights just above the seats.
Both of mine use the same signal/codes (I believe they all use the same codes) so the IR remotes will work them both if in range. I also use an H880 to control my system. It works great with these switches also.
I did not want to control both lights at the same time - in fact I rarely use the lights on the screen wall. I found that by covering part of the IR sensor with a very small piece of black electrical tape, I was able to make it less sensitive such that I have to roughly aim the remote in it's direction in order to control the lights. I added a similar piece of tape to the switch next to the seats as well. Can't even really see the tape unless you look for it.
I've been setup this way for 2+ years now and it works exactly as I wanted- just like I had two diff sets of IR codes.