While completing the event application, you may be prompted to enter your team's blackout dates or scheduling requests for that event, if the event allows it.
Go through the application. You will enter the dates when you come to the "Schedule Requests" section. When you get to this section, click on the box title "Exclude Date".
Click on the date you wish to set as a blackout. This will input the date selected.
Click "Add Additional Date" to add another date as needed. Each event can set a limit for the number of requests for each team. Click "Save and Continue" when finished.