If your customers are using Eclipse version 3.4 or later, you can simply insert markers in FrameMaker for links to secondary TOCs from the primary content. The secondary modules do not need to know where they are used, and if any are missing, the primary helpset still works without error. The missing TOC items are silently omitted. See §11.6.1 .
If you must support versions of Eclipse prior to Eclipse 3.4, you might have to use anchors in the primary TOC and links to those anchors from any secondary modules; see §11.6.2 . For versions of Eclipse starting with Eclipse 3.4, this method is deprecated.
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