Not really anything to worry about there, you can revert back to the original setting, you are only changing factory settings that are already there. When you first connect, you do a backup file "Read System ID" with the PC version of the software. Then save the file on your desktop or wherever you want to save it and you have a grocery list of how your BCM is configured to reference in the event you make a change that you don't like or do it inadvertently, you can ctrl F search it and find the setting and change it back to the original setting.
To use the software, you just need to have a grasp of basic computer skills and get yourself familiar with how things work. I would have taken the time to learn it sooner, but since 2020 my life was just SUPER busy with work and life obstacles, but mainly work, so I just now have had the time to put in to learn what I needed to and play with it.
It's neat and works well, so far I have made 3 changes, the DRL location like you see, speedometer adjustment for larger (35") tires, and reenabled tailgate ajar warning so it will show up in the cluster and also the factory inside the bed LED's will come on automatically when you open the tailgate.
I do have a few more things I want to eventually do/add that would take a trip to the dealer to add them, not anymore. It feels good to have the knowledge and know-how to adjust things to my truck without the need of the dealership.
ETA: Also, the software isn't married to the truck, I can use it on any other vehicle it can communicate with...My wife drives a JGC Overland and will be messing with some things there too.