The text document confused me where i use it the first time.

Just try it with a new save game and play arround with the numbers till you get the right settings for you. But be warned when you change the arrow numbers it will break the game. On the modapi is a mod called bigger backpacl or something, the only thing you need to do is change the settings with a editor, i think with this mod you get something like a text document and there you can change some numbers.