I'm not sure about assigning to a hidden device and how to get to it. With ir.exe I show 10 devices for my 6820 and I have 6 devices keys. So I picked the most likely 6 devices to program #1, 3, 4, 6, 7, and 8. I left #2, 5, 9, and 10 alone. The AUD device #8 is my TV/DVD 2015.
So I make another upgrade like DVD/2016 and put it another device, like #2 SAT? Then how do I access it?
These are devices I control:
0093*TV Sharp
0490*DVD Panasonic
1039 DVD Pye DVR Mod PY90DG
1314 DVD Apex TV/DVD Mod 1314DV
1330 VCR Tobshiba TV/VCR Mod MV13N3
2015 DVD Haier TV/DVD Model HLTDC15