Linking a Custom Property Value for a Part to the BOM Quantity To link a custom property value for a part to the BOM Quantity: After adding a custom property, type or select the custom property name under BOM Quantity. Click OK. Parent topicSummary Information - Custom and Configuration Specific Accessing Custom and Configuration Specific Properties Adding Custom Properties Adding Associative Dimensions Into Custom Properties Editing Custom Properties Editing the List of Custom Properties Deleting Custom Properties Adding Mass Properties