First step is to locate your schedule with the match you would like to view the countdown for. There are several options to get to a schedule:
From the dashboard, Select Matches for the schedule you'll be working on.
OR
From the dashboard, Select Scheduling and Schedules. Locate the appropriate schedule and select it. Select Matches -> Match List from the dropdown.
Locate the match you would like to view and or add items to the countdown. From the dropdown, select View/Add Items.
View the countdown accordingly. From this page, you can add a new item or edit an existing item.
Select the New Countdown Item and complete the necessary information OR select the three dots next to an existing item and Edit / Add to Calendar / Delete.
If just need to adjust the countdown time order you can click directly on the countdown time make the changes and click save