How can I friggin backup any save games if only activating the trainer mods my Inquisition power and perks to unlimited and actually freezes them at that value even if I switch off the trainer and restart the game??? Seriously dude no offence but any save I had since starting your trainer is afflicted. So basically I can not back up anything because activating it ruins any savegame you save while using it. So basically any amount of time I use the trainer is wasted gametime because I will have replay it in order to avoid the bugs that the trainer creates.
You copy your saves to another folder--just make one on your desktop that says something like "DAInquisition Backup Saves". The files in that folder will not be affected as neither the game nor the trainer will look for saves there. If something goes wrong, you have those saves, and you can copy them back into your game's save folder.
...you know, it's the same way backing up ANYTHING works.
Before trying anything potentially game-breaking, you should back up your saves. That way you don't lose your progress if something goes wrong.
It's not the trainer/mod developer's responsibility to protect your data. They aren't forcing you to use their stuff, and if you have the necessary computer skills to install and run the trainer, then you have the skills to make back ups of your saves. If you don't backup and you lose hours of play time, it's no one's fault but yours.