Hi and thanks for your report.
For the moment, templates are not easy to manage. There is two types of templates. a "listing template" when you display your collection, and a "detail template" when you click on on item to display more information. So you can modify both types. You can see an exemple of a detail template on the forum but in french for the moment (topic: "Personnalisation de template").
If you need more informations or some help to create your template, you can send me a message on the website.