5. Move the file to C:Program Files (x86)SteamSteamAppscommonProjectZomboidmedialuaclient
6. Load up the game, hold F11 and press U as many times as needed.
NOTE; The Lua file should be closed before loading the game or the cheat may not work.
(Strength and fitness perks dont seem to do anything, could be because of an older version of the game?)