sort column in matrix

Hi,

I need to sort column by descending order in matrix table . I have followed this link but not working.

2016-Qtr-4 | 2017-Qtr-1 | 2017-Qtr-2(Default)

 <----------------------------------------
2017-Qtr-2 | 2017-Qtr-1 | 2016-Qtr-4  (Needed column order)

 can any one please help me on this.

Thanks