Is there a way to have a Singular Part in Inventory have multiple vendors each using a unique PN for that Vendor?    Say I'm ordering an item thats available multiple places and at place A it's PN#123 and Place B its PN#321  but I want to track them all under a single part number in our system.  Is that possible?  I see where I can flag multiple alternative vendors but I can't seem to change any info relating to that alternate vendor.