Opening all folds for a tree

[joshpetit]

Since I have like... a lot of top level headlines, I use zO to toggle all the subheadliens for a headline. This helps me stay focused on a single thing. I then use g{ to go back to the top and use zc to toggle close the headline. Something I thought I would share!

% pressing zO on headline 1 will open up all the nested headlines.
* headline 1
** Nested 1
*** nested nested 1

* headline 2
** Nested 2