#### 12.4.4.5 Avoiding skipped heading levels in the TOC

If you find that Eclipse Help output includes <topic> elements with no label attributes, check whether there are any skipped heading levels in your document. Hardly any Help systems allow skipped levels in the TOC. This usually happens when there are sub-subheadings directly under a major heading, before the first subheading. For example:

1. Top-level heading

Third-level heading

1.1 Second-level heading

Third-level heading

1.2 Second-level heading

By default, Mif2Go inserts the missing level; this works for some systems, but not for Eclipse Help. Avoid this pattern in your document; at the least, exclude such sub-subheadings from the TOC.

| 12.4.4.4 Directing TOC links to top of topic page |  | 12.4.5 Configuring index properties for Eclipse Help |