how to control which level you spawn characters on when using streaming levels

hi

i am using multiple levels
a persistent level and streaming levels as addition
i spawn actors in blueprints
the actors should be spawned on the streaming levels
seems they now instead end up on the persistent level and the streaming levels
when i switch levels the characters are on both levels / maps
is there a way to control on which level a character belong or is it a question of having to manage the characters by deleting etc

thanks

or perhaps i can simply make the characters hidden although it may create problems with collisions etc