Does anybody know how these stands work?

So I'm not used to these new(?) stands and I just unboxed my Clawdeen Howliday so seeing this stand is confusing me a lot. Can anybody tell me how to put my dolls on these types of stands?

So I'm not used to these new(?) stands and I just unboxed my Clawdeen Howliday so seeing this stand is confusing me a lot. Can anybody tell me how to put my dolls on these types of stands?