Yes, you could select multiple actors in your scene, add tags to them while selected, in the details panel. Then use a GetAllActorsWithTag node, and promote the returned array to a variable.
edit: make sure you edit the Actor tags and not the component tags.
Is there an efficient way to create an array from a large number of objects, like hundreds, without manually dragging a reference node to a make array node? It would be nice if I could group objects in the scene, then use that GroupActor reference in a blueprint, but currently if I drag the GroupActor in, it also adds a reference to each element in the group. So hundreds of references. I’ve never used Component Tags. Can I add a tag to objects, like tag them Walls, then grab all objects with that tag in a blueprint?
Ah, it was right there in front of me. Thanks!