Provide advanced options for WPMUDEV notifications (mail & hub)

Hello,

I'd love to be able to bulk edit all notification settings for Uptime/Downtime, Automate, SEO and other services that are being displayed

- per Email Notification
- per Hub Notification (via the little "bell" icon left to our Avatars here)

Anybody else who would like to have this?

Thank you and kind regards,
Sascha