Ability to sort the selected items

It would be great to be able to change the order of the selected items after the selection is made.
So if I have to reedit a node and want to change the selection order, I have to remove all items and add them again in the needed order. This can become very time consuming with multible selected items (which this module is for). So something like up and down arrows to sort the items in the selected field or using the drag n drop drupal way would serve very well.
grossmann-mcs