[Roger Barre]

Absolutely agree about Ecco. It's so good that it kept me from switching to Mac for years. Despite having been discontinued and left unsupported for over a decade, Ecco Pro is still the most intriguingly well-designed, powerful, customizable and useful piece of software I've ever had the pleasure to use. And I used it in many different ways.

The Ecco features I'd love to see in OO include the ability to use different outline structures (different columns, different style sets, etc.) for different outlines in the same file ... the ability to filter an outline based on column data ... the ability to see the same data in different configurations (the way OmniFocus does) ... and that's just for starters.