To add adjacent objects to the current selection, click mouse button 3 over an existing selected object and select Add Adjacent Entities. Abaqus/CAE expands your selections to all adjacent objects of the same type, including objects that are not included in the current display. If necessary, Abaqus/CAE adds the newly selected objects to the current display group to make them visible. Adjacent objects are defined in terms of the currently selected entities as follows:
Edges that share a common vertex with one or more selected edges
Vertices that share a common edge with one or more selected vertices
Faces that share a common vertex or edge with one or more selected faces
Nodes that share a common edge with one or more selected nodes
Elements that share a common element edge or node with a selected element