Pages: Custom HTML info dumps also considered.

What problem are you trying to solve?

A lot of the time, I have my own HTML formats that I like to share with my team. For example, I have a QA review that is very specifically developed for my use case, so that would not be rendered by Superset page skill.

Proposed solution

Make pages more extensible. Instead of just using the default template, I'd like to also be able to have my own template and generate and render HTML docs that can insert themselves into the pages UI, but just use a different template than what Superset has provided.

Workarounds you've tried

No response