Some way to make of the RANK field, the resulting calculation of a formula.
Hour B - Hour A = 4
Rank field formula calculate this and displays 4 times a 1 star icons - without the user Selecting 4 stars - result is 4 stars side by side in this column.
RANK turns into a Result field instead of an Input field.
another way to do this, would be to create icons with 1, 2 , 3 combined stars Icons
...and then display the wanted icons depending of the calculated field results...