Hey! Sorry, didn’t see this thread…
If you’re looking to make a new quadrupedal race using this mod as a template, I suggest starting by looking at the template MrPlague’s Authentic Races provides ingame (if I recall correctly, from character creation there is a ‘create new race’ button which will set you up with a template project,

Once you’re familiar with the basic requirements for a race, take a look at the code for something like the L’il Fox mod I made, which should give you a better idea of how you can make a quadrupedal race that interacts with the code base provided by this mod.

If you want to discuss in detail, please feel free to add me on Steam, Discord, or you can join the L’il Discord server and ask your questions there so others can answer as well~