If you want to use cheats, you can use Cheat Engine. For value type, you want to use double. So far, I've figured out how to edit money.
i've been trying to figure out relations, scanned for all and did some raising and lowering of relations, the values for relationship are a double for the number (so, 15 relationship with double you scan for 15, pretty straightforward) and a 4 byte value that is coupled with the double.
so 15 (double) corresponds with 1076756480 in 4 bytes. thing is if i change these numbers they automatically get changed back, and now i am figuring out if i can find what does that.
ah, now that i am messing around it seems there also is a float involved, i officially am just stumbling in the dark, but i'll keep messing around with this
EDIT : if you are using cheat engine i think the specific moment to do something is when you see tracy + 1 on screen, now only to figure out how to target something so specific