[decisiveness]

> I've discovered, through trial and error, that hitting SHIFT+ENTER creates a new cell, but this should maybe be more easily discoverable.

This is in the tutorial, Section 3 - Cell Operations.

[oneeyedpigeon]

That's great, the tutorial notebook is a nice addition. To its credit, the app is usable without wading through a manual first, as all software should be. I still feel a toolbar icon or a more obvious way to create a new cell would be beneficial.