Once you know what your position round matches are, you can create your matches (This will add it to the schedule and give access to the scoresheet.)

Go to Calendar, (Menu> Manage > Calendar).

Select the date (small calendar on the left hand side), 

Click on the Plus.

1. Select the league (Bracket/Charts), 

2. Type Home Team and Away Team

4. Date;

5. Time;

6. Duration.

7. Save.

Once you are done creating your matches, you can select the match and click on Score to fill out the scoresheet.