Room Owners / Moderators can go into the wall settings area

Under Modify Wall click "Duplicate"

Then choose what you would like to copy!
By default it is set to copy the Wall Settings, Backdrop, and Evaluations. It also maintains the linked copies to the assets. You can choose to create "new copies or don't copy" if you are trying to only duplicate the wall settings.  and its settings within the same room, or in any other room the moderator has permissions in.

Last but not least choose the destination, by default it assumes you are duplicating the wall with in the same room but you can duplicate walls to any other room in which you have moderator status.