You can create a table of contents from any heading text that you have in your wiki page.
For versions 5.2 and earlier, generating a wiki table of contents requires the Wiki TOC plugin, available through CollabNet Professional Services.
To enable TOC for a Wiki page, place the following in your Wiki page at the spot where you want the Table of Contents to appear.
The Table of Contents is generated automatically based on the heading markers in the wiki page, e.g. !!!Heading