OK, big job to do and trying to figure out the most efficient workflow.

I've got about 100 documents (construction specifications) that are essentially long multi-level lists (unfortunately, can't post an example without permission). Think one big outline for 5-10 pages.

Each level of the list already has its own style, but the numbering/lettering was done manually a million years ago. This results in a ton of manual renumbering each time we edit these for a new project.

My goal is to get these documents to auto-number for us in the future. What's the best way to go about this?

The closest I've gotten is creating a new multi-level list and linking each level to the corresponding existing style, which results in a lot of cleanup of redundant numbers, with the new auto-number added in front of the existing, for example:

2. PRODUCTS

becomes

2. 2. PRODUCTS

Is there a way to get the existing numbers to auto-number instead? Or perhaps an efficient way to clean up the resulting mess of the above process?

Grateful for any suggestions. Thanks!