Not IsEmpty ( FilterValues ( YOurTable::YourCheckBoxField ; "Low Levels" ) )
will return True if the Low Levels check box is selected. It will work correctly even if another check box value contains the same text such as "Low Levels Again".
You can look up the functions I used in Help to learn more.
Thank you! I had, I was playing with that function, but couldn't figure out the logic to make it work correctly. Thanks again.