I may be adding a factory trailer brake controller to my 2015 F150 so I can haul a 22ft camper to my elderly in-laws for family to stay in to take care of them. I have the trailer tow package so it looks pretty simple. My question is when I enable the trailer brake control module in Forscan do I also need to enable the "Trailer Brake Controller Gain Setting"? If I need to enable it I assume I also need to change the "Trailer Brake Controller Gain & TPMS Specified Value" to "C"?