Click the Advanced tab, review the warning then click Continue.
Click Port Filtering (below the Advanced tab, to the right).
Click the Port Filtering switch to turn on or off.
From the Applications section, select the desired app(s).
Selected when a check mark is present.
If the app is not listed, click Add Custom Application (lower-left) then enter the appropriate info.
If turning off Port Filtering, skip to step 7.