In Tridion 14, how do I resolve comments in the Review Space?

HI, 

I sent a publication to a reviewer in Review Space. She commented and I responded to her comments. Now I have fixed the issues. How do we mark the comments as Resolved? Is there any online help for Collective space? I am also not sure if I have to refresh the link or if the reviewer can use the same link I sent initially. 

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