F1 - Act.Trainer
F2 - Inf.Health
F3 - Max Bleeding
F4 - Max Temperature
F5 - Max Poisoning
F6 - Max Burns
F7 - Max Fractures
F8 - Max Hunger
F9 - Max Dehydration
F10 - Max Fatigue
F11 - Inf.Items
F12 - Inf.Weigth

Notice:

Start the game world first then press Tab key to open inventory and stats view then you will be to activate trainer and cheats.