How do I create groups in worldguard on my server?

Moin, I'm currently creating a minecraft server for a few friends and would like to set up team bases in which only team members can build in their bases and not in others (team blue eg only at the blue base). Unfortunately I don't know how to do that. Would be correct if someone could tell me how to set it up

papermc 1.15.2 with worldedit, worldguard

/ Rg create region name

/ rg region name build deny

/ rg addowner name-of-person

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Remember that you need Worldedit too

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