How to sort in current selection box for rolling 4 months like oct2015,nov2015,dec2015,jan2016 coming in random order
No need to do anything.
By default it will sort as per data
could you post your sample app?
Check this post:
Calculating rolling n-period totals, averages or other aggregations
Since you said you're using Concat function, why not sort your concat using the Sort Weight in the Concat() function itself to sort it
Concat ( [ distinct ] string [, delimiter [, sort-weight]] )
I think the currentselections box sorts the data in the order it was loaded and no way to change the sorting order in the currentselections box other than doing the sorting in the load script at back end.
Retrieving data ...