Having the Next buttons not also save your information is counter intuitive.
Wasn't expecting to lose everything I typed in every time I hit Next.
Same with the Add button vs Next button.
The project itself is pretty cool. I really liked it, despite expecting something different from the name.
If you're interested in feedback: let people download the data as json and reimport it later.
Give interested people a link to a guide for creating new templates. yours are great, but I think a project like this would have way more potential with significantly more templates to chose from. Though there probably will be very few (if any) contributors... Maybe not worth the effort after all ;)