Currently we use Pack&Go whenever a customer orders a machine.  Say the last machine had a suffix of -033, the new machine would be -034.  We also use custom properties in these models.  The models have a "Item" custom property that essentially matches the filename.  Is there a way to change a custom property during the Pack&Go process (changing "Item" CP from -033 suffix to -034)?  Is it possible to link the filename to the "Item" custom property?