Closing a resource with the right button

I used to be able to close a resource with the right button held down while making an "L" shape. Is that no longer available? 

They are still available, but are off by default in new installations, and can only be turned on by entering a command in the Go box.

Type: Set Use Gestures to Yes

Make sure to wait for the list of suggestions to show up, and select the appropriate option.