Options:

F1 - Active Trainer
F2 - Inf.Health
F3 - Inf.Stamina
F4 - No Hunger
F5 - Inf.Comfort
F6 - Inf.Oxygen
F7 - Inf.Energy
F8 - Inf.JetPack
F9 - Inf.Items
F10 - Super Attack
F11 - Super Defense

Notice:

Start game world first then activate trainer and required cheats
First open inventory and make sure you have at least 1 item then activate items cheat.