The Pair Multiphysics Coupling node () defines a coupling feature that can only exist (have selections) for pairs (identity pairs and contact pairs).

To add the Pair Multiphysics Coupling node, under Building Blocks, right-click the Multiphysics Couplings branch node to add this from the context menu. You can right-click the Pair Multiphysics Coupling node to add many features.

The Settings window is almost identical to the Generic Multiphysics Coupling node, except that it only allows you to choose Boundary or Edge from the Supported geometric entity levels list in the Selection Settings section.