To access the Management page, click on the icon next to Support on the top right corner of your Sportshub page, then click on Organizations.
Under Organisations, you will see all the Organization you are a manager to. In most cases, it will be your club, so only 1 Organization.
Under Users, you will have the list of all users that have access to your organization.
You will have the choice to add and remove some, as well as the opportunity to name him Manager as well. (Good for a backup option)
Under Permissions, you will be able to give view and schedule access to any member of the Organization.
Note that Myarena is only accessible to those who can schedule at least in one league.
Under Tags, you will be able to give the opportunity to someone in your organization to see the tags of
someone else in their iPad app decomposition of the game.