Speaking only for 2016 utility and later...you cannot add keyless entry/program remotes with Forscan. Must be done with IDS.
We bought the adapter that Forscan recommends on their site. I helped a friend with a '15 Police Sedan enable Aux input, keyless entry, auto headlights....
In my '16 utility, I've enabled the remote start options in the IPC (to work with the remote start I installed), enabled perimeter alarm, auto headlights, park light flash on lock/unlock, horn honk on second lock press, intelligent all wheel drive display...