If you need to reuse the same topic multiple times in the same publication, copy and paste the topic's fork in the publication structure. The original fork and the copy will both reference the same topic, but the forks will have unique IDs. This is important for cross-references, as it means you can cross-reference to a specific fork in a publication, rather than the topic.
To learn how to copy and paste a fork, see Reuse Forks in the Same Publication.
To learn how to add cross-references to a fork, see Add Cross-References to Other Topics.