I just downloaded the mod and I have seen that they have a manual but is in Russian. So for everyone that wants to read the manual I have taken the liberty to translate it (Machine Translated).
Here is the file:
https://drive.google.com/file/d/1y7_...ew?usp=sharing
Edit: I woke up with dozens of notifications on my phone because I left the PDF with download restrictions (Sry don't have used GDrive too much). So the restrictions are lifted now and the download is liberated for everyone, again sorry for the mistake! Cheers.