I think it would be very helpful if you created a module specifically for:
Category
ProductList

for example:
I find it very time consuming if i just want to add the product list module to a page. What i get currently is all the modules, and I have to remove them one at a time to finally get only the ProductList. I have tried to add the modules to a hidden page then select "Add module from page". Problem with this approach is that when i 'edit content' the main module is also edited from the hidden page. This makes using this technique irrelevant. Since this hidden page now also has the template selected and i cannot use this trick for any other page unless i also want to display the same template.