I am organizing my EN-Notebooks via STACKS. Stacks usually are based on anchor topics under which I organize particular notebooks (threads). Over time, for me it became apparent that it would help if there were the possibility of a >STACK Hierarchy< meaning >a stack in a stack in a stack< .... the depth of 3 would be my best guess.... after that it gets hard (at least for me) to manage oversight.
Appreciate your consideration.
h-o-m-a