Nested Lists

This idea is similar to this already posted idea but I think it is different to warrant a new submission.  We are looking for the ability to create multilevel or nested lists that have a format like the example below.  We have several program manuals that are controlled documents that use this type of list formatting for chapter and verse type referencing.  It looks like headings already have this type of functionality but numbered lists withing text sections do not.

Nested List Example:

1. First Level – Topic 1

   1.1. Second Level – Topic 1 section 1

      1.1.1. Third Level – Text 1

      1.1.2. Third Level – Text 2

   1.2. Second Level – Topic 1 section 2

2. First Level – Topic 2

   2.1. Second Level – Topic 2 section 1