The homepage probably to broaden the audience talks about tabs but as can see in screencasts, in-program, they're called (borrowing from Emacs) buffers. In cont

The homepage probably to broaden the audience talks about tabs but as can see in screencasts, in-program, they're called (borrowing from Emacs) buffers. In contrast to tabs, buffers don't belong to a specific window and can switch to one within another window.