Most settings are tied to a Workspace and some configuration/settings is only available for administrators, that are settings like permissions, custom fields, site url, email delivery, and so on. Other settings like default senders, Google Analytics, and unsubscribe settings can be made available for editors as well.
Configure a Workspace by navigating to
Administration -> [Workspace] -> Manage.
Here you can configure Workspace-level settings for:
Each workspace has a "Settings"-icon in the tree, navigate to this to configure settings on the workspace.
Here you can configure