Hi.
I'm trying to add a new template (.tpl) file to an existing design for a company. It is fairly basic:
* New page with iFrame that can be controlled from admin.
* Add new CSS to the new file that will either overwrite existing CSS or add to template.
I have tried to find reference to where I should place such a template and how to add it to an existing design, and the only reference I find is how to make a new design. In addition I cannot fully (or at all) understand the catalogue structure.
As I see it I should add a new extension. Anybody have some pointers that are step by step regarding this issue?
Not to mention - is this the right place to ask for this?