Option to exclude a resellers and their users from the send_usage_message option

We want to use the feature send_usage_message (https://www.directadmin.com/features.php?id=765) and disable all usage notifications on all of our servers for a long time, but we want to have an option to keep it enabled for reseller so they can enable/disable it for their sub users.

Is it possible to implement this so our resellers can choose if they want to disable the messages or keep it enabled? We would really love this

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