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Hierarchical Project Tree
HPT is designed to help break a project down into smaller and smaller chunks, allowing you to go into fine detail without losing sight of the big picture.
HPT is particularly good for working with certain types of dyslexia (or at least it's designed to be).
Please let me know if there's any feature that would improve it for you.
Currently HPT is a perl script using the perl Curses module for the interface.
You can contact me at thomash833152@users.sourceforge.net or go to the project pages at Sourceforge.