Unable to select the floor before cleaning start

[Poon84]

Dear all,

I searched already on the different issues but did'nt find my answer.
I'm using a roborock S7 and I have 2 different floors in the native app.

When I want to start the cleaning, by default, I see the zero floor and also the associated map, but I'm unable to select the 1st floor (I usually bring my vacuum on 1st floor and then start the cleaning), so can you please tell me if possible to have direct access to the floor selection before starting the cleaning ? And also, how can I see the map of 1st floor?

Thank you for your help.

Alex