What's the easiest (or best) way to change the order of Milestones or Tasks displayed in the Gantt?  I can live with an alphabetical order for a little while, but when I have 20 or so Milestones, then I need to add one at line 12 (for example), it can become a bear to edit all Milestones after that one. just to make it sort properly.

I'm sure someone has already tackled this one...just wondering the best way to do it.