It would be a great resource for activities to be pinned at the top of an activity list. Listing an activity as a high priority with the exclamation point only goes so far. The date does not roll, so if the user doesn't know to update his columns by priority or if it changes, then the activity goes back to the original date. Going thorough and rolling each activity every morning is inefficient. If there was an easy way to PIN a certain activity to the top it would stay at the top of your list no matter what.