Currently I'm working on a custom add-on for my site. It uses a mix of custom and pre-existing templates. One scenario I've found myself in a couple of times is that when I'm working in a template, I realize I wish to create another template to be included within the one I'm working in. Right now, I have to go out of what I'm working in to create the template before I can go back. I was wondering if it was possible to add a little + button on the right of the tab block (or something equivalent) that would bring up a blank template/template name form where I can create my own template within that and immediately continue working on what I'm doing without leaving the page.