You can access the supplied detailed PDF manual in the "Help" menu via the "Manual (PDF)" option.
To view it, you will need the free Adobe Reader or another viewer program for PDF files.
In older programs, you can access the PDF manual via the Windows Start menu > MAGIX > [Program name] > "Help and documentation".
You can also log in to your MAGIX account at www.magix.com.
Here you will find a link to the PDF manual under "My Products".