Did you accidentally choose the wrong set of standards? No worries. Go to "Search Standards" and then select the ‘X’ on the standards pane of the standards you want to close. When you hover over the "X" it will say, "Close this search pane." Just click the button and the standards set will be removed.
Note: While using Cc, if you don’t see the set of standards that you use, don’t worry! You can always add them using the Common Standards Project! Learn more here.