How to narrow to subtree in org agenda follow mode?

Question

When org-agenda-follow-mode is on, how do I make the buffer showing the items in the agenda narrow to the subtree of the relevant item?

Answer 1

Basically all you need to do this is to have org-narrow-to-subtree run right after whatever function org-follow-mode is calling, which happen to be org-agenda-goto. You have to be a little careful writing the advice because org-agenda-goto is sometimes called with an argument, which org-narrow-to-subtree can't take. Here's what we need:

(advice-add 'org-agenda-goto :after
            (lambda (&rest args)
              (org-narrow-to-subtree)))

Answer 2

Late response, but it may be helpful to someone.

There's another possibility to view tree in indirect buffer only for item at point with C-c C-x b

This indirect buffer can also be used in follow mode when you set org-agenda-follow-indirect to non-nil value like this:

(setq org-agenda-follow-indirect t)

Source.