Please!! We need this.
Imagine having to choose for one sort method for all the books on your shelf. Of course you expect your phone book to be sorted differently than your agenda, etc. Each notebook is a different book, therefore requires its dedicated sort method.
There are requests on this board from 5 years ago requesting this.
It is six annoying clicks switching between two different notebooks just to adjust the sort. My Inbox I want sorted reverse created and one of my notebooks I want forward by title. And then it is six more clicks to switch back. That's just nuts.