The Location: Boundary subnode is used to select a set of boundaries whose centroid represents the point of application of a force on a rigid domain.

The Location: Edge subnode is used to select a set of edges whose centroid represents the point of application of a force on a rigid domain.

The Location: Point subnode is used to select a set of points whose centroid represents the point of application of a force on a rigid domain.

These nodes are automatically added when Centroid of selected entities is selected in the parent Applied Force node. They cannot be added or removed manually.