I have a listing that has check boxes for making independent selections, like a cafeteria list of items. If the user wants to select all of the items they need to tediously check each one. Is there a way to have a 'Select All' check box with the result being that all of the check boxes in a range are checked? This wouldn't be all the check boxes on the sheet as they are grouped in categories, so just for the appropriate category of check boxes.