I am not able to figure out how this sor

URL

https://test-fcf.appdevdesigns.net/

<dt>Browser</dt>
<dd><code>Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36</code></dd>

<dt>User</dt>
<dd><code>bruce</code></dd>

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Note

I am not able to figure out how this sort work. Once I set my sort criteria I was looking for a ' do-it' button. I tried refresh, but that did not work. Having an "OK" or "Cancel" option at the bottom after "Add New SOrt" would be nice.

Screenshot

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