That menu item should be grayed, because there is not help file yet.
The PDFrizator is still in an early stage of development, and probably until v1.0 many things will change, so probably only when the program gets that more mature stage will get its help file. Or if, meanwhile, someone offers to start it
. I can't work in everything at the same time.
If you have any doubt about any of the features, or how to achieve a specific result, please ask here in the forum.
