now I am not quite sure if this isn't already possible in a way, but I think this exact function is somehow missing and would help a lot:
I use Resolume with an APC 40 and would like to be able to trigger all my clips by MIDI only.
Now the problem is, like most MIDI controllers I only have 8-9 Buttons in a row, but building decks with only 8 clips per row leaves me with a headache of switching between the decks or triggering half of my clips with the mouse.
So I'd suggest this feature (hope it's understandable):
This way you could fill up you're rows with as many clips as you like and just scroll to the position you'd like to use, all with your MIDI controller.