What is 'Show "Correct Time" Buttons in Attendance Record' in Employee Portal Setup

There are four Correct Time Buttons, Correct Work In/Out, Correct Meal Time, Correct Rest Time and Correct Callback Time. If these options 

are turned on (in System Manager->HRPro Setup->Employee Portal Setup, Employee Self Service Tab.)

And the "Time Clock Correction Request" is prepared and enabled. 

The Attendance Record in Employee Portal will show the Correct Time button to allow to apply a Time Clock Correction Request application if the days of the employee are either Late-In, Early Out or Absent except if the check-box Show on Every Day is checked, in that case, the Correct Time button will show on Every Day