Hey hey!
I was trying to use my KSP with Ableton recently
I've borrowed a friend's Push1 and I love how the keys light up when midi clips play, this is part of the appeal of getting a keyboard with lights associated with the keys for me. As a keys player, sometimes I need to learn keys parts to a song or sometime I write something a long time ago and would like to write complimenting parts to go with it... but I've forgotten how it goes. I'm a very visual person, reading piano rolls is great and all but nothing beats having the keys light up in front of you for the part you're interested in.
The problem!
Sending midi from ableton does light up the keys, but it also causes a feedback loop
I see that having midi pass through the KSP is an excellent feature when you have other gear or controller keyboards feeding into the KSP
Perhaps they are recording on the other midi channels? are in different locations in your studio? who knows
But it's great you can see it light up and then it can control your sound modules "down stream" from it.
But
In some scenarios I ^NEED^ to disable this
another scenario is if you have a hardware synth that has a built in keyboard
You can record into the KSP with the synths native keyboard, stack up some sequences and then use those sequences to drive the synths sound engine.
once again, it risks sending duplicate notes.
Sometimes I want to send midi to the KSP, record sequences or light up the lights but ^not^ pass it on.
I've also seen other posts about Midi thru features where people want it to forward channels that are outside the 4 active channels associated with the sequencer.
I think it really would benefit from the option to set "thru" on a per channel basis.