Midi Programmer's Mode
In Midi mode offer an optional setting where the Deluge spits out a Midi note for any pressed pad (1-128). Receiving Midi-In notes on the same channel would trigger that same pad to light up in a specific color. (Sequencing would be ignored in this mode on this track as the user would take care of it reading the midi clock.)
E.g. when track set to Midi channel 7: Pressing the 10th pad in the bottom row would trigger 'Midi Note: On / Track 7 / Note: 10'. User could now send the same information from his computer to light up that pad red 'Midi Note: On / Track 7 / Note: 10 / Velocity: 19' (in case 19 means dim red).
This way we could build custom midi software which could use the (amazing) pad grid of the Deluge for input and output. Someone could also write a custom script to use the full pad layout in Ableton for example.
Similar to Launchpad's programmer's mode. Here is their reference (examples on and after page 18) https://d2xhy469pqj8rc.cloudfront.net/sites/default/files/novation/downloads/10598/launchpad-pro-programmers-reference-guide_0.pdf