Copy/Add/Rename a room on Room Data

Hi Team,

I wanted to know if it's possible to copy/add a room from Room Data-->Select Room tab (see below). I'm not sure if by doing so, the copied/added room will appear on the plan and on the 3D. Also, I happened to rename a room from Room Data-->Room Data tab but then the room disappeared from both the 2D and 3D plans. Is there any way to fix it? 

 

Many thanks in advance for your reply!

Carlo