Save and load placed Actors in the Editor

I have a level consisting of a road and a few vehicles (which are blueprint assets that I created). I’d like to create different traffic scenarios by putting vehicles in different positions and setting their variables, without creating a separate level for each scenario. Inside the editor, how can I save a set of placed actors to a file (or directory), and load them to the level later based on which scenario I want to work with?

Thanks!