Changing the Value of a Custom Property in a BOM To use custom properties in BOMs, you must set the custom properties in the part files. To change the value of a custom property in a BOM: Double-click a cell of a BOM column that is linked to a custom property. Parent topicBill of Materials Overview Related concepts Example of Bill of Materials Item Number in a BOM Table Replaced Component Item Numbers in BOMs Related tasks Setting Options for a Bill of Materials Inserting a Bill of Materials into a Drawing Inserting a Bill of Materials into an Assembly or Part Displaying the BOM Assembly Structure Excluding Assembly Components from a Bill of Materials