How to give Members Permission to open - close topics that belong to them?*

Hi,
I am trying to give my member users to close/reopen or sink/unsink permission on the topic that are belong to them. How can I do that?
Thanks a lot.
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Hi,
I am trying to give my member users to close/reopen or sink/unsink permission on the topic that are belong to them. How can I do that?
Thanks a lot.