There's a new generation of hardware controllers like the Roli Seaboard RISE or Grand, and the Linnstrument that use a new protocol called Multidimensional Polyphonic Expression (MPE). I'd like to see MPE support built into Studio One. Partners involved in designing the spec include Apple, Moog, Roger Linn, ROLI, Madrona Labs, etc.
In the current world, to use a Rise with an MPE compatible instrument in Studio One, I need to create 16 separate instrument tracks, each set to receive on a difference channel. Notes and note data can be transmitted on any of channels 2-16, with channel 1 acting as a master channel. This makes MIDI editing a nightmare.
As an alternative, if S1 had MPE support built in, a single MIDI track could be used to record/transmit data across all 16 MIDI channels, which would be much cleaner.
Here's some additional information:
As you can see from the "Using the Seaboard with Studio One" link, the workaround is cumbersome compared to native MPE support which would put all that data on a single track.