How to filter/organize notifications

Summary:

Some users are receiving a considerable number of notifications:

Requisition approvals

Purchase order approvals

Invoice approvals

Among these approval request there are FYI notifications as well. After some time the notifications displayed when we click on the bell, become messy and it is easy to miss important notifications because they will be really down on the list..

The view all option, does not allow any sorting. It allows filtering but one must know what is searching for in order to use it efficiently.

I was wondering if there is a way to fine tune or create a custom sort on the notifications shown while clicking on the bell icon.