How to make actor persist in streaming level when unloading & reloading

I’m trying to have an actor when added to a streaming level persist when that streaming level unloads and reloads. however, it seems when unloading a streamed level, all the actor are deleted (and thus it does not persist).

Is there a good way to get around this or should I just change the visibility? While on the topic, what are the performance benefits to hiding vs unloading a streaming level?