If your league tracks shot location, goalie saves are calculated automatically.

If your league does not track shot location, follow the below steps to record goalie saves. 

From the Scoring tab, first confirm that both goalies are properly added to the game - there should be a goalie entry for both teams. In the Goalkeeper Saves section, update the number of saves in the period for the goalie. (Example: If the goalie has made his first save of the first period, change "0" to "1" under column)

Click the publish button to update the game stats for all goalies.