I have just published a Keyboard Maestro macro (mostly AppleScript) that takes a TaskPaper document, and displays it in a Eisenhower Decision Matrix, with the 2x2 quadrants sorted by @important and @due. There is a second macro that returns TaskPaper to its' normal view.
If you need help choosing which tasks to focus on for the day, this might be your holy grail:
I'm really proud of this macro, as it "scratches an itch" that I have tried to address over the last year. Please let me know if you find this helpful and if you have any questions.
What the matrix looks like: