Hi Chavoos
I have no experience with this AT all, but from looking it up...
"Launch Control" for the JB4 is actually "Boost Reduction" in the first 2 gears, so if you battle for traction, you can go into "user settings/adjustments" and enable the boost reduction in the first 2 gears, and set a boost limit for gear 1, and separately gear 2. E.g 10PSI in gear 1 and 13PSI in gear 2, so even with full boost, you don't lose traction, and then gear 3,4 etc all operate at full boost.
Apparently, if you'd like to bypass this to do a burnout etc, you can simply hold the volume button or talk button on your steering wheel, and it will bypass the boost limit you've manually set.
This is what I have looked up.. I literally wouldn't know as I don't have a JB4, or even turbo's in my straight 6 :=):