Maple Pro offers all
the functionality that I need. It's clear and easy to learn. I greatly appreciate the user interface: it seems to be designed to serve people, rather than to impress them.
Maple Professional is the flagship of the tree
outline managers for power users. It has a ton of features that make it an ideal document database tool. You can store many kinds of data, from text to graphics and pictures.
The program allows you to import all standard text formats such
as doc, rtf and wri, and offers many of the features you'll find in a word processor.