Here is the tutorial. Have fun and don't forget the vote :)
02- Move compass to any surface by holding red dot and clear all selection (select nothing, nothing seems orange.). W/Z direction in the compass show us die's demould direction.
03-Activate Draft Analysis.
04-Open color scale window.
05-Enter the draft values by double clicking them.
06-Select the part body. And you will see surfaces with color (blue,green and red).
07-You can change demould direction by clicking "Inverses the draft direction" button.
08-To define another demould direction activate "Uses the compass to define the new current draft direction" button.
09- Move compass from current surface to another surface by holding red dot. Information field will show you new demould direction (which is perpendicular to new surface). And color distribution changed according to the new direction.
10-Move compass again and color distribution will updated from new direction.