The Magnetic Continuity node adds a continuity pair feature for the magnetic vector potential. This node is only suitable for pairs where the boundaries match.

From the Pairs list, choose From list (the default), All, All contact pairs, or All identity pairs. If you choose From list, select the pairs where you want to impose continuity across the pair boundaries by clicking the Add button () and choose the pairs to add from the list in the Add dialog that opens; then click OK. Also see Identity, Contact, and Sector Symmetry Pairs.