Competition Rosters
When defining the lineup settings of a particular Competition, it is possible to configure mandatory usage of catalogues, known as rosters. Those define how strictly the competition roster (catalogue) limits player selection on matchday:
Ignore – catalogue is informational only; all registered players are available.
Optional – if at least one player is listed in the roster, only roster players are available; otherwise, all registered players are available.
Mandatory – only players listed in the roster are available for selection.

Note that, if the catalog is configured as optional or mandatory, you will only be able to choose players and officials for the competition from the roster.
By clicking on the ➕ Add player or ➕ Add team official button on the Clubs tab of the competition, the list of registered players (or team officials) for that club will appear, organized by category and competition type.
