Hi and welcome to the Bome community!
Really the quickest way to come up to speed is to look through the video tutorials. Most are under 5 minutes.
As far as how to send colors back to the APC-MINI MK2. I put this post together when I received mine. It should help you determine what the APC-MINI MK2 needs to light the LED’s. Depending on what Magi cQ can send, you may need to translate MIDI messages sent from Magic Q to MIDI messages required by your APC-MINI to make the LEDs behave the way you want.
Steve Caldwell
Bome Customer Care
Also available for paid consulting services: bome@sniz.biz