AutoSketch is a drafting tool that allows you to create conceptual sketches. It uses pre-defined functions and tools that you can use to create various sketches which can be later sent to actual physical production. To be able to work with AutoSketch, various knowledge is required, mostly in technical drawing. The software is somehow similar to the AutoCAD application, only with fewer elements.
To learn how it works, go to Help > Contents to read more, while the program is opened.