Profile: mazizovv

The current version of our online shop is 3.70. Could you please make clear some details? We are going to buy new template to upgrade the old one. We will upgrade it on basis of the current version of our online shop which is 3.70. So, the question; once we bought and upgrade the template and some time later when we decide to update our online shop version to newer version rather than 3.70, should we pay again for the the same template to operate? or it will go with subsequent versions of online shop?Second, Is it possible to edit the code and design of templates on my own, or I have to buy additional license?