Is there a SpellCheck function?

After a few postings and re-reading through some things, I was unable to find a spell checker. Is there an option to add one or embed it into the advanced editor controls area?
Nothing over the top; just curious.

Hmm, not that I can see, but I’ll do some more research when I get a sec.
There may well be a browser extension that you could install. I know that Firefox has one.