When one has, for example, a number of metrics in the left side column under each other, it would be useful to be able to drag them up and down in order to change the order of them. There is a sort arrow but that only gives an alphabetic sort A-Z or Z-A on the names. See screenshot:
So the idea would be to take, in this case, 'Unique Visitors', and drag it above 'Visits' for example. Off course the whole row to the right of the metric would move with it. This possibility to manually order the leftmost column would give the table more flexibility. Clicking the 'Sort' arrow could reset the ordering to one of the 2 predefined possibilities (A-Z or Z-A).