Yeah, Logic allows you to have different groups of controllers, that can be configured differently (e.g. one group with Track Lock on, the other with Track Lock off). I think Studio One allows you to have multiple groups, too, though, right? It just doesn't happen to have an equivalent to the Track Lock feature, I think.
But you're right - Track Lock is NOT something most people will need. But if you have a controller that should always keep controlling the same thing in your DAW, and not move along with the selection, then that's a convenient thing, IMO.
I did ask PreSonus about this feature at some point, and they told me something about "Focus" being set to "Global" or follow the selection... but that didn't really do what I needed. Or at least I couldn't figure it out... (...and somehow I got the impression I'd have to map every single controller manually, to even be able to try, and that seemed like a giant PITA).
The PreSonus Stageboxes are awesome, though! I'm about to drill a hole in the wall, to finally put an (analog) Stagebox/Mic-panel that I already had into my recording room, and not have to run cables under the door anymore... but a single network jack for a Network-Audio Stagebox on both sides of the wall, would be SO much cleaner.
I thought you need to have a PreSonus mixer to be able to use a AVB stagebox, though, no? Or how would it interface with the rest of your setup?
I had a prospect to get a PreSonus mixer some months ago, so I researched it a bit (AVB, etc.), but I didn't get the mixer in the end. So, I'm still rocking my D8Bs (besides, I like the "Inline" mixer logic on the D8B, with completely separate (and stored) settings for your Mic channels and your "Tape-Returns", including the plug-ins. The PreSonus mixers don't do that, and you'd have to recall different scenes and snapshots all the time to get close to what the D8B's "Mic/Line" and "Tape In" layers do... and I'd sorely miss that feature).
Nevertheless, I envy you for your AVB Stagebox, and flexible routing options, over a single network cable! AVB/Dante etc. are the future, IMO! I played around with a PreSonus Mixer & Stagebox system a little bit, and the flexible routing on those, was really amazing - and so clean with that single cable!!!