CTRL+F strategies and proper usage

So I just learned you can use ctrl F on the LSAT reading comp. What are the best ways to utilize this to maximize speed during the test? any tips pertaining CTL+F are appreciated. Are there any other tools like CTRL+F that are permissible during the exam that may help?

ALSO: Has anyone had issues with a proctor who was not aware ctrl+F was permissible?

Thanks guys