SP has its own templates (reference) under "Saved Items" for sections and addons. I find this good. I think it would be even better if these templates behaved globally. For example, I would build my section or addons with the same settings, so that afterwards only change the content on the respective page.

If I find that some value is not optimal, I would change this in the template (refernce) and this all values on all pages are automatically transferred.

Or if I add another addon to my template, it will also be automatically adopted. If I wanted to use completely different values or change something, I would unlink the section or addons.

That would save a lot of time! And increase the user interface feeling enormously.