I would really love to be able to define and then open a group of notes all at once. I'm not talking about opening all the notes in a Notebook.
EXAMPLE:
I may have a Notebook for Client A, for which I'm working on Project 14.
I want to be able to define and save a group for all the notes related to that project, Then, I would like to open all the notes related to project 14 at one time -- from a Notes Group feature on the side navigation menu, or from (File/Open Note Group/List of Saved Note Groups).
When that project is complete for that client, I could delete the saved