My build mode CC wont show up?

Hi, i really need help! I am trying to create a pose with a stroller, however when i go in to look for the stroller, it isnt there? i have found many threads for this kind of thing, but they have all been for CAS, not objects. it is in my S4S mods folder, and i have redownloaded S4S twice. please help asap! thank you.