I'm not sure what you mean by "club/insert" as hammering won't help. 🙂 I'm also not sure why you are referring to segregating as the two projects are already segregated.
It sounds like what you want is to make the two projects create one output. That can be done as described here. Merged Help RoboHelp New UI (grainge.org)
If you actually want one source project, then you would import the topics.

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