Right-click a Constraint, Dirichlet Boundary Condition, or Pointwise Constraint node to add one or more Excluded Points, Excluded Edges, or Excluded Surfaces subnodes. Using those subnodes, you can exclude all or part of the surrounding points, edges, or surfaces from a constraint that acts on the edge, boundary, or domain inside of the excluded geometric entities. For example, the Excluded Edges node specifies edges where the higher-dimensional (boundary) constraint for which it is a subnode is not enforced. Excluding a constraint on a surrounding edge can be useful to avoid the constraint affecting the physics on an adjacent boundary, for example.