Im trying to get some clarity on this using Umbraco 9...Its my understanding that Umbraco uses a TinyMCE Cloud Is including a premium plugin from TInyMCE as simple as including it in the

lib

folder or referencing account credentials in appSettings? Has anyone run a premium plugin, specifically SpellChecker Pro?

Not using TinyMCE Cloud, that's their hosted version.. If you have the plugin files, it should be possible to just drop them in though, but I don't know how you'd go about buying those.

Im thinking if they have a tiny account they could download the plugin straight away?

Possibly 🤞 but I don't know how they validate licensing, you might actually need the cloud version 😅

yuck

Guess it should just work since we advertise it (who knew!!) https://umbraco.com/integrations-and-tech-partners/tinymce/

interesting...

It all links to "standalone" Tiny though, so it's unclear how the integration works.

Yeah reading that now, this is an interesting needle in the stack...