u/redflowercrown

(Drawing added because i dont know what keywords to use when trying to look it up)
Im pretty sure its what puppet rig animators use to switch between models n stuff? I use toonsquid and ive seen a few other animators use it and i want to know how (i asked but they never answered, so im trying to find it myself)
i'm new to puppet animation and am wondering if that would help out my workflow