Cheats in gnomne:
= L, R, up, X, R (after that, just find the gnomne because sometimes it's behind the tree)

Max current food resources:
= square four times, L

All plan:
= X, R, X, R, X (including the shower)

All craft:
= square, triangle, R, down, down, up

Gnome cheat:
To activate gnome, press Left trigger, Right Trigger, Up, X, Right trigger.
(the gnome IS in every area you just have to look for it)

Max Current Food and Resources:
To activate press square 4 times followed by the Left Trigger. You can now go to your gnome and use this cheat.

All plans:
To activate all plans press X, Right Trigger, X, Right Trigger, X. You can now go to your gnome press x go into gimme and get all plans.

All Craft and Resources:
To Activate all Craft And Resources press Square, Triangle, Right Trigger, Down, Down, Up. You can now go to your gnome and press X, access gimme and use All Craft and Resources

All these cheats work so don't say they don't because I've used them