Reply to Mapping question: vci-100 (NOT se)

I'm still a bit of a noob at setting up the midi controller I'm using which is a VCI-100 to mimic that of a CDJ 2000 or something. I'm trying to set the three buttons above the platter to be a loop-in, loop-out, and re-loop button with the same functions as a cdj.

I'd like to be able to adjust the in or out loop by tapping said button again and using the jog to adjust length/position. Maybe use one of the other buttons somewhere to cut that loop in half, and have it continue doing that like the loop cutter on a 2000.

Any suggestions on how I go about doing this?