The Commercial prouduct has an unlimited diagram capacity.  In addition, it adds very powerful edge banding features. 

• You can specify 1, 2, 3, or 4 sides of edge banding for each part and make manual error prone calculations a thing of the past.
• The advanced reporting features of SL will sum up each type of edge banding used in your project and calculate the total usage and cost for you at the click of a button.
• Print labels for each part that include edge banding identifiers