Yes I've looked at these technotes.

I know exactly the ones that don't work, it's the sources that have been re-mapped when going from MSR to MSR+ according to this Wiki - MSR Mapping.
I think when I would use a MSR+ on my equipment it would give me the same issue. At least through the control program it is so.

In the legacy configuration program I do have the option to say to both devices which version of remote is being used, but changing this only has an impact on the source naming in the program, nothing else on the equipment, it seems. I would like to confirm this. Is somebody using an MSR+ with an 568+562 combination with Disc+Sat+Game+Tape sources working?

Maybe I would need to re-type them?
Does it make sense?

Thanks for reading.

568.1 Processor, 562v3 MController, 596 DVD Player, 504 Tuner, MC200, MS600, 218, 210, Roon