An optional claimable item is an object that has been related to a master item using the claim12 and claim21 properties on specific relationship definitions. When the main item is selected for a claim, any related optional items are also available to be claimed. These appear in a separate Optional Objects panel in the Claim dialog box.
For more information on claiming optional objects, see Claim optional objects. For more information on configuring the relationship definitions for a claim, see Relationship definitions.