How To Make Poses For New Camera Menu in Moschino Pack

I have seen creators like Sacrificial Mods make things like a hotair balloon, its interactions include posing sims using a set of poses made and archived by the creator... I just wanted to know if there was some sort of repository for these poses in-game. I would like to add or override poses from said repository... The only other time there has been additional poses added for the purpose of sims facing the camera and striking a pose has been Get Famous and the Moschino game pack. Does anyone know or can speculate where the game would be storing these specific poses? Can one override these? Or clone them?