In the tasks list, select the task(s) that you wish to change priority for.
Click on More Actions....
Select an option under Prioritize... in the dropdown.
(Alternatively, use one of the keyboard shortcuts 1, 2, 3, and 4 to set the priorities to 1, 2, 3, and none respectively.)
The selected task(s) will change priority.
The status box gives the opportunity to undo the priority change.
