[AmberV]

Just like there is a line between Inbox and the rest, I'd like to be able to add my own dividers to separate logical realms of responsibility. I could of course put things into top level folders, but I'd rather have everything out in a nearly flat list at that level of abstraction.

[coconino]

I'll second that, and throw in that I'd like it to work by alt-dragging an existing divider (like any other duplication, e.g. in Finder), as well as from a menu option to Add divider line.

[AmberV]

Good idea, you could even have alt-drag off of the original Inbox divider create a new one. In this way, it would be a bit like creating guides in Photoshop, where all you have to do is drag off of a ruler to create new guides.

[coconino]

That's exactly what I was thinking. I even tried alt-drag on the existing divider in case the feature was quietly present already.

[Janice]

Another vote.

[johnrover]

I agree. That would be quite helpful.