OmniHelp supports ALink keyword targets and jumps, ALink keyword pools, and KLink jumps to index-link lists. An ALink keyword target or jump can specify multiple ALink keywords, separated by semicolons. An ALink keyword can consist of more than one word; spaces are allowed, but no other punctuation. ALink list links always go to the beginning of a topic; KLink list links should go to the paragraph with the corresponding index marker, just like index entries.
See §16.6 Providing related-topic links for Help systems for ways to include ALink targets and jumps and KLink jumps in your OmniHelp project.
If you include the related-topics feature when you generate OmniHelp (see §19.6 Choosing navigation features for OmniHelp), the left navigation pane shows a Related tab. When you click an ALink jump hotspot (or click the Related tab), OmniHelp automatically switches the left navigation pane to the Related tab, and displays a list of links to all other topics to which any of the same ALink keywords are assigned.
You can set up your OmniHelp project to also display a list of the ALink keywords assigned to the topic (via marker or paragraph format) or specified in an ALink jump within the topic:
[OmniHelpOptions] ; ShowSubjects = No (default, do not show subjects for ALinks) or Yes ShowSubjects=Yes
The keywords are listed under Subjects in the space above the related-topic links.
§16.6.2 Understanding how ALinks work
§16.6.4 Adding related-topic link keywords in DITA XML