Can You Set a State Tree Dynamically on an Actor Spawn?

Hello! I have been investigating the use of State Trees to control AI in my project, but I am looking for a way to set an actors state tree from a variable when it spawns. After having a look, I’m not too sure how to go about this or if it’s currently possible.

I would have a number of different state trees I can assign for an actor and would really prefer not to have to make a new child of my actor for every different state that could be used in it. Does anyone know of a way to set a state tree from a variable at spawn?