Read All Button for Notification

[PangHC]

My gallery have more than 100+ notifications. it hard to click one by one.
Want to have mark all as read button for this.

if possible split message to 2 type, admin and system, where:

1. admin (for communication)

2. system (grant user access, share workflow and etc.) 

[TheOC]

Yes please!
Seeing 99+ on our Server pains me.