Could you give me the simpler version, I'm very new to this and I am struggling
You open up cheat engine and at the top left hand side you'll find a computer with a magnifying glass, open that then press the Space Hulk.exe
You can find a text saying "Value:" and right underneath it a bar. In that bar type in the current amount that you have and then press "First Scan"
A bunch of Addresses will appear on the left hand side that you can basically ignore for now.
Go into the game and increase or decrease the current value by either playing a game or buying something then type in the new value and press "Next Scan"
Now pay attention to the addresses if it's red and the value is jumping back and forth ignore that address. now if you have several addresses you can just double click those to add to the bottom of the window.
Once there you can press the value area of the added address to change it. If there's several addresses added then you can simply go from 1-X giving them a specific number so you then tab into the game again to see which value it now has then just tab over to cheat engine again and change that specific address to the amount you want.