Using GroupActor in Blueprint

Is there any way to use a group actor in a blueprint to toggle visibility? Say I have a large number of lights that I want to reference in a blueprint and toggle visibility. Currently I take that large number of lights and manually have to make an array out them, which can get time consuming. Basically, is there a quicker way to either make an array out of them, or use the group actor node that is created by grouping them in the scene? The group actor node doesn’t seem to do much in the blueprints.