Adding Fonts to a Brand made directly from the CC Libraries folder?

Hi there, is there any way to add fonts to a Brand folder you have made created direct from your CC Library folder? Once the Brand is created with all the assets from the CC Library it was made from, there doesnt seem to be a way to also add a fonts folder. I have searched everywhere for a button or how to add one to this folder but cant find anything. Can anyone help please?

Cheers

Gia