By default, Novu will show the subscriber preferences cog icon on the Inbox component. Users can enable/disable any active channel in the workflow using subscriber preferences or they can update the preference globally for all workflows under the Global Preferences.

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Preferences Component

The Preferences component is used to display the subscriber preferences, use it when you want to render preference in another part of your application or a custom layout for the Inbox. 
import { Inbox, Preferences } from '@novu/react';

function Novu() {
  return (
    <Inbox
      applicationIdentifier="YOUR_APPLICATION_IDENTIFIER"
      subscriberId="YOUR_SUBSCRIBER_ID"
    >
      <Preferences />
    </Inbox>
  );
}

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Filtering preferences

You can filter the preferences visible by the user by specifying the preferenceFilter on the Inbox component, learn more about it here