The driver results one can't be sortable as the cell content isn't all numeric, there are also reasons such as Ret, -, etc., which means sorting doesn't work correctly.
I did originally have sorting but the cells with non numeric characters are sorted first/last so it was never possible to get 1-20.
I will revisit it and see if it's the same.
The bottom two I can add other columns to but it's quite a bit of work so I'll see if I can implement that for next season.