PCG : Is there a way to inject custom variables into my HISM-child class using PCG?

Hello,

In my PCG graph, I am trying to use a custom child of HISM for spawning meshes, is there a way I can inject custom variables into my instance, specifically through the mesh descriptor. For example in my custom HISM class I have a variable “Actor Class” which I want to use to replace the HISM instance with an actual actor based on the proximity with the player.

Is there a way I can set this variable through the PCG graph itself just the way I set the static mesh and override materials?