"...each Lifetime PLUS subscriber may only request one option per game."
I don't understand. you can literally set your level, and the other things, to whatever you want them to be. you want super damage and super health, just enter level 999. You will have max of every stat pretty much.. or you can use the booster to give yourself more.
Did I miss something? Perhaps you don't see the EDITOR parts of the trainer?
Regarding Item editor, I have no idea. I did not work to do that, as the engine wasn't very easy to work with. I assume they are using mono scripts or some other thing to get ahold of the script chain.
They located the FIRST SPOT in the inventory, and I guess you can change the value of the ID to give yourself anything, but I don't have time to sit and log 5000 item ID's and make a list for you.
I am not sure how this trainer isn't useful... it's literally an editor for the character to give them the stats and etc. to whatever you want them to be.