Ah, I just saw your other post
8 channels, Mono with Filmpanners ? And lots of outputbuses ?
What do you want to use it for ?
Film ? Music ? Broadcast ?
I'd take it apart completely except for the audiochannels, rewire the routing for stereo use, and add stereochannels and a few subgroups.....
Seriously.
The routing is a PITA on the 5k's, and it can be done differently. And the IR and TR can be bypassed. This means you don't have the option to back up the settings, but at least you have a system that works, and since you only have 8 channels, it's not much work to write down the settings.
Or sell it, and buy something else. That sounds crude I guess, but I know what I'm talking about. (And yes, I still have my 5k, and I really like its sound, but not the quirks and hassles that come with the 5k....)