Main tab bar (named “Main”) is where you start working by adding artboards and views.
Additional tab bar cannot be added manually, a new tab bar is added when editing supported views such as Collection View or Custom View.
Main tab cannot be removed. Object Editor tab can be closed by hovering and clicking close button at top left of the tab bar. Additionally an object editor tab is automatically closed when correspond object to the tab bar is deleted.
Object Editor Tab
Object Editor tab can be opened to edit supported views such as Collection View and Custom View.