Way to choose publication category
Click on "Add content" Button (in the Personal Profile page) or "[+] New" under the "Research outputs" (within the "Personal" from the top bar).
Mouse-over each category, a brief explanatory note will be shown to help you understand the details of each category. Click on the category that matches your outputs.
Researchers (or your trusted users) are expected to choose the appropriate Main Category and get the template for your outputs.
Each main category comes with a General Template. Select this one if you are not sure which template fits your outputs.