Mark wrote:

I do like the way you can show and hide full documents
in the outline with just a keystroke. Why are such simple, obvious and useful features
so rarely emulated?

Why indeed? It's this ease of getting around and manipulating the outline that is so important. Brainstorm achieves much of this fluidity, too, although it is a rather different beast from GV. Maxthink (DOS) did, too. The windows version has the features, but not yet the fluidity, IMO.

Derek