I need help in defining a TOC supported Word 2007 "Section" with numbering that supports the use of a alpa character as part of the numbering scheme.

Or better yet, provide a "url link" to a document that utilizes a similar format!

An example follows.

Please Note: This "Forum Tool", does not allow me to present the customary indentation formats for sub-level groupings, which is NOT my issue.

Appendix A : REFERENCES FOR ADDITIONAL HELP
A.1 General Links............................................. ..........................21
A.2 Policy, Guidelines, and Standards......................................... ...22
A.2.1 Acquisition Requirements...................................... ........22
A.2.1.1 Federal Acquisition Regulation (FAR).................... 22
A.2.1.2 Federal Procurement Data System Portal...............22