I have completely forgotten how to do riser spawners. I watched a few tutorials but for some reason, the risers do not work. Could someone refresh my memory? What kvp's do I need to enter and and is there a specific way the structs need to placed in the ground?

I tried at first to make a map that had 0 risers , but i am now at a stage where i need to reduce the entities , i tried installing risers exactly using this method but they do not spawn instead where i add the actor with the riser KVPs it spawns and just stands there. i have also tried to remove the find_flesh from the struct .