does anyone know if midi over usb will work on the Dot2? cant find it anywhere
USB Midi devices need (software) drivers. These can't installed on console
the answer is: NO, it is not possible to use USB MIDI devices.
When you have a laptop running, you could use BOMAC to transfer the MIDI USB signal using ART-NET to the console.
I'm often do this, to provide the club DJs access to the light show (without able to delete/edit/destroy anything).
Fog, strobe, some other executors.
They have Laptops anyway.
You can use the free version, this provides 14 faders/buttons in total - but Windows is needed (MAC OS is not supported).
another way could be a dot2 onPC in session with the desk.
As onPC is a windows based software you can install any driver you want/need. Then your onPC can receive the MIDI commands. Due to the fact the onPC runs in session witht the desk it works as remote for the console!