Is there a way to see all Spawnable Actors in Outliner?

I am working on some cinematics and have spawnable cameras in my level sequences. I would love to be able to batch select all my cameras and change certain attributes or sublevel assignments, but with spawnables the cameras only appear in the outliner when spawned. Is there a setting or a menu somewhere that allows me to see, select, and edit all spawnable actors in a level, even if they are despawned?