Multiple scans in one project

At the risk of seeming dumb: I forgot how to do multiple scans of a single object within the same project, as for example scanning the top and bottom of an object: I did it in the past but I am unable to do it again now. Went back and forth into the manual and online tutorials with no luck. Help really appreciated!

They are done automatic under one project until you don’t create new project.

Just don’t create new project , continue new scan only

Are you using Revo Scan on computer or ?