actual blueprint nodes

does anyone know how to get these nodes (circled in blue), they look like the actual blueprints that are in the level, someone said they are referenced in the level bp , but I cant find them , they don’t come up in search when adding a node , not in contect or no context. does a variable have to be created for them or something?

Can you find them in the level? If so, select one, go to the level BP, right click, and one of the first options should be to create a reference to that object.

I think I got it , I dragged it in from world outliner.