On Thu, May 25, 2017, 5:55 AM Sharon Kimble <boudiccas@skimble.plus.com>
wrote:

>
> Is it possible to have a buffer showing the headers of a file in a
> buffer in a popup window to the left of the main window in org-mode
> please?
>

Yes, there is a package that does that. Check out imenu-list.

We already have 'neotree' but that just shows the files in a directory.
> What I'm looking for is something like 'Imenu' but in a popup buffer,
>

Yup, exactly that.

which is activated in something like 'M-F8' and displays, and then when
> 'M-F8' is used again it closes the popup.


M-x imenu-list does that by default. You can bind a key of your choice to
that.

Ideally, this could be used for any buffer that is being used, whether
> its latex, mediawiki, or whatever, although possibly not for gnus.
>

Yes, this package is generic, for imenu.


That said, for the purpose of jumping to headings, I like the newly added
counsel-org-goto command added to the counsel package.
-- 

Kaushal Modi