Yea, used multimeter and a screwdriver. Ok, not sure i will bother to change it. At least not in near future. Got the printer to learn, and well. Wanted a large printer if i need to print something big at some point. Nice to have the option. But at this point i rather spend money on a new printer than continue modding this one, voron or something similar looks fun… 
I think got the answers in discord a year ago, but didnt have wires. Now, got the wires, but lost the info… Hehe
Other than that, didn’t seem that hard at all when i got help on discord. Board seems to support it somewhat at least, if you got some wires and know where to connect them… So it kinda grinding my gears. Hehe
I got this diagram. If this is helpful.
diagram.pdf (783.6 KB)
Here is the thread where the dude enabled it, and separating the motors for z-axis.
Still think its not worth it?