I currently have an install in its own directory (named 'q2a), so all activity is within that directory.
Keeping the install where it is, I want to be able to publish into the root of the domain.
What do I need to do for this?
(This is like the WordPress set-up... where a WordPress address (url) can be set, with a different site address (url) if you want your site homepage to be different from the directory in which you installed WordPress.)