Some time ago, I don't remember when, I prepared a web tips page on this topic. I must have forgot to post the link:
http://gregmaxey.mvps.org/word\_tip\_pages/classic\_wordart\_in\_word2010\_2013\_documents.html
Greg, your tip to add the Compatibility Mode Quick Tool icon is the key to making this totally simple. However, the challenge most seem to have is how to get the campatibility mode document without having an old copy of Word 2003 installed. ...
After editing the NormalOld template file and saving it as a regular, non-compatibility mode .docx file, the word art remained just fine. Although the OldWordArt quick tool icon grayed out in the .docx mode, I could still edit the word art per the old 2003
method.
Hope this helps.
Here is a screen shot from a document (not in compatibility mode) using the Add-In at
2003 WordArt Add-In for 2010-2013.
No macros, no switching templates. The WordArt is simply inserted from the custom gallery into the Word 2010 document. Right-clicking on the WordArt gives access to the traditional formatting tools.
(Note the old WordArt formatting tools and gallery do not work in Word 2013.)
If the gallery control Greg suggests is added to the QAT, it works in non-compatibility-mode documents whenever a classic WordArt image is selected.