Sort Matrix Column Headers by dynamic in slicer context

Hi dsi 

Please try this:

I create a set of sample data:

Then copy the column which you need to sort and click Enter Data:

Then Transform data > Merge Queries:

Close&Apply,

select the column and click Sort by column, select the sort column.

The result is as follow:

^{Best Regards,}

^{Zhengdong Xu}

^{If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.}