I believe you should be able to sort those quick filter values. Can you post a sample workbook demonstrating this problem?
Also, could you do something like "...ELSEIF parameter='Month' THEN MONTH([Date]) +" " + str(YEAR([Date]) "
inside the calculation so an additional calc is not needed?
I am not seeing a way to actually sort the quick filter field. And yes - that calculation can be used as well - the output ends up being the same.
I'll need to mock up an example.