Best way to edit template?
I am in the process of trying out themes and up to now found them brilliant easy to work with and when combined with plugins a total gem.
Now Lets say I have a template its converted and working as a theme my question is
If later I decide to add to the template and create another couple of editable regions how is this acieved?
1. Which file do I edit to add the regions
2. How do I make the existing pages that use the themes also have these regions?