Hi, for those of us using more recent versions of Emacs, the new tab-bar-mode can be quite useful. As I have been playing with, I thought it would make sense to have the option for agenda views to pop-up in a new tab as an option. I've coded something that behaves in a similar way to the 'other-frame option that currently exists for org-agenda-window-setup. Patch attached. Comments welcome, of course. -- : Eric S Fraga via Emacs 28.0.50, Org release_9.3.7-719-gcdfc40.dirty