About Replacing Unrelated Components with Reference Pairing
You can replace an assembly component with an unrelated component, by creating a pairing table. The table contains the placement references from both components. These references can be established manually or using auto-pairing rules. The pairing table pairs each current component placement reference with the incoming component placement reference. Required references, indicated by 
, must be paired, while optional references can be left unpaired. The pairing table is saved and can be used to return the original component to the assembly.
, must be paired, while optional references can be left unpaired. The pairing table is saved and can be used to return the original component to the assembly.Sometimes you know that one component will be replaced by another, for example, a simplified representation of components will be replaced with an updated, more complex component. You can ensure the design intent by consistent naming of features and interfaces during their creation. The use of identical references ensures that connected child models are not affected by component replacement.
You can also use evaluation rules to automate component replacement when the replace_unrelated_automatic configuration option is set to yes. The reference pairing table is populated automatically according to the hierarchy of the rules set. The order of these rules is set by the configuration options for the evaluation rule order.