You are welcome. I switched my response to link to a previous response which gives more details.

I would start with QAT modifications because they do not require programming or XML coding. Once you understand XML, though, you can do even more with the QAT.

Even though you have extensive experience with Word I would recommend a couple of basic tutorials:

• Word for Wordperfect Users to eliminate any WP habits that are not a good fit with Word
• Basic Concepts of Microsoft Word - from Shauna Kelly (I learned from this as an experienced Word user)