Technically, you can’t!
I use the MCCommand Center mod and you can change your household size limit and max pregnancy. For my BPR save I had it set to 12 for a household and up to 5 babies at a time. When I made the Torches save I made it from a copy of my BPR save so I would still have all the townies, etc.
I just never changed the settings back? SO QUADS!
Fun fact though! We have a set of purple Quads coming up…eventually.

Oops. You didn’t hear that Ume. Shh.