This seems like a very trivial issue, but I have been googleing for it for the past hour !

I have a few colums (date, numbers, text) and all I want to do is add a little button at the top of the screen above each of the columns that sorts the entire list by whatever column I select to sort (ascending or descending).

This is driving me nuts as I cannot succeed in finding how to do it !

Please help,
Ken.