I understand you what u are trying to say that a good point. That you only want to give access to those whom u will allow to join the group or u will give access to them to be a part of the group and may share their views or post comments freely in ur group.
Thats a nice one.
Qatari there should be some thing like that.that a group owner should the power to give access to a member or ban out the member or delete out their comments as so on.

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