[Evolution] spell checker in toolbar?

[Kyler Laird <Kyler Lairds com>]

Is there an easy way to add spell checking to the Composer toolbar?  I
just switched my wife back to Evolution (because it's the only GUI mail
client with decent Maildir support) and she's appalled that I wasn't
able to give her a one-click spell check.

Thank you.

--kyler