Using the ProscenicHome app on iOS: how do switch between maps.  I had the robot clean two floors and it accurately drew a map while cleaning, but after moving the robot back downstairs, how can I then select the map from downstairs?

The wording in the app is off, as if it is badly translated into English.  If I go into "cleaning record" and pick a previous cleaning from downstairs, there is a "usage" button in the top right and when I click that it says "Using this mapm it will cover the currently used cleaning map, are you sure?"  I don't know what that means, what is meant by "cover the currently used cleaning map"? 

But that is close as I think I got to being able to switch maps.  Is that the right way to do it?