@Regina114 What you want to do when you have a question here, is to start a new topic, which you do by clicking on the red bar "Start a Conversation", on the first page of the Hosting or Help sections. Or do a search by typing in key words to see if there is already a thread running that might answer your question, or you could add to it.
If you tack a question post onto a thread which has nothing to do with your topic, like you did here, hardly anyone will see it, so you won't get many responses.
I only saw it because I was already subscribed to this thread.
But since I'm here anyway, I'll try to answer your question. What you need to do is create 3 separate listings, all under your account. One for one of the bedrooms, one for the other, and one for both together. Then you have to link the calendars, so if both bedrooms get rented separately, the other listings become unavailable.
So what you'd have is:
Listing #1 One bedroom with shared bath.
Listing #2 One bedroom with ensuite bath.
Listing #3 Two bedrooms with shared bath.
If I understand you correctly as far as what you want to be able to do. For each listing, only show the bedroom and common spaces that a guest would use. For the 2 bedroom listing, you show both bedrooms.