I use an Axiom 49 at the moment and it’s doing the trick.
Although I am looking to replace it for something with more control.

The axiom 49 has 9 Faders/Sliders I use for track volume on the OT
It also has buttons below the sliders that I use to arm one shot recorder trigs on each track except button 8 and 9.

I use a different zone to use the key bed to control the A4.

Pretty simple.