A FrameMaker-generated index includes, for every <$nopage> entry, a cross reference to the original marker location in your document. Such references are not very useful. If your index includes a lot of See and See also entries, consider using IndexRef, a FrameMaker plug-in available from Sundorne Communications:
IndexRef changes <$nopage> See and See also entries in a FrameMaker IX file so the links point to the referenced index entries instead of to the original markers in the text. When you convert a FrameMaker index processed by IndexRef, Mif2Go preserves the corrected See and See also links in the output (except for Help systems; see §6.5 ).
For OmniHelp output, Mif2Go redirects <$nopage> links, whether or not you use IndexRef; see §9.7.6 .