You can now designate additional team players to be Co-Captains on their teams. This allows the captains to share the load of the team management responsibilities by giving them ability to invite players to its roster.
Step 1: Navigate to the program
Hover over the Manage tab and click on your program type (league, event, tournament, camp):
Step 2: Find the team
Click on the Teams tab and select the team you are adding a co-captain to:
Step 3: Use move tool
Find the player you'd like to make co-captain and click the Move Player icon next to the player. Finally, select the green Make Co-Captain button.