All sports have access to an "Entire Roster" group, which is a system group created by ARMS for each Academic Year.
The "Entire Roster" group includes the following athletes:
All Roster Statues
These groups can be used to add participants to events and used for Team Communication.
If you would like to create a custom group with other specified Roster Statuses and/or specified athletes (e.g. all pitchers and catchers), please reference the help article for creating Groups.
See also "Active Roster" Group