So basically go inside of the project and put your character in the image slot and then list the attacks they have and describe them. (THE CHARACTER DOESN'T NEED TO BE HUMANOID) Then put the name of the character in the name section. Lastly, give a few voice lines for the character so I have reference. (MAKE SURE IT'S NOT TOO BASIC, I WANNA SEE OC'S AND STUFF LIKE THAT.)
If you need extra help with this, there are notes inside of the project where everything is just to make stuff easier.