You can create teams to your game. This can be done in the "Add participants of the game" section. After clicking this button, you can type in a name and participants for a team. After typing, click the "Add" button.
After adding a team, the players can login using the player code that was generated. In this case, the code is "Phantom Penguins432". An instructor can edit or delete the team by clicking the two buttons next to the player code.
If you accidentally delete a team, and want to recover it, you can simply type in the name of the team again, in this case "Phantom Penguins" and click the "Add" button. The team will then be recovered, as well as the player code.