Role Based Access Control exists for all groups (subgroups) and events. When you navigate to any management page, e.g., to the "Manage Users" page, you'll notice a column for "actions". When you click on each action selection you will notice all types of actions to be applied to the specific row in the database. Some of the actions will include "Add Member" or "Remove Admin". Based on the available options, the actions related to the user will be shown.
As shown below, you'll notice the area highlighted in red displays roles and options for you to modify, update or create for this specific individual.
Note: In the case you want to update or add administrators (this is most likely b/c you are limited based on the version/tier you are subscribed to). For all other roles you should be able to update and make modifications.
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