Add a Cross-Reference to a Fork
If a topic appears more than once in a publication, use a cross-reference that targets the topic's "fork" in the publication structure. This way, you can choose which occurrence of the topic should open when the user selects the cross-reference link.
For instructions, see:
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Add a Cross-Reference to a Branch if you use branched topics.
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Add Cross-Reference to a Topic if you use regular, non-branched topics.