Congrats on the new CVO and welcome to the forum.
As far as the garage door opener.
I'm going from memory but I found it pretty easy on my opener " Genie pro belt drive" Goes something like this.
Take HD receiver and attach on ceiling near power outlet and garage door opener to be operated by bike. Take leads from HD receiver and run these smaller wires to the plus and minus screws on your opener.
I seem to recall an activation button on the HD receiver that you need to press...somewhere on top. Hold it down for a few seconds, until the red light stays on solid red, Go to bike, With ignition on, "the transmitter is already installed from moco" but bike does not need to be running, flip the hi/lo beams back and forth several times and it should cause the HD receiver to program with the bike, and the open garage door to close. You should be done at this point.