One of the best features of the KPC7 is its look. Because of the button size and construction it is very amenable to engraving with text that shows the button action. Nothing finishes an installation in a more professional appearance than nicely labeled keypads.
The best way to create an order for engraved buttons is to use UPStart as it can keep all the necessary information with the UPB file.
UPStart also creates the necessary order form for LaserEngraverPro.com
Full information with step-by-step instructions is available in PCS Application Note #104.