After you have created one or more teams, you can manage them at any time.
Under the Manage tab, navigate down to the Teams tab and highlight the team you want to add or remove users from . To add users, click the Add Members icon > select users you would like to add to the team > click Add Members to apply the changes.
If you wish to remove users from a team: Select the users name from the team list > click the Remove Members icon > the members have now been removed from the team.
Updates to Teams are immediate and users in chats with those teams are immediately notified when someone has been added or removed.