DMSELECTEDGES command
Selects the edges of faces and solids.

Icon:
Method
Select the faces or solids from which all edges will be in the selection set.
Press and hold the CTRL key, then click the edges to be removed from the selection set.
Selects the edges of faces and solids.
Icon:
Select the faces or solids from which all edges will be in the selection set.
Press and hold the CTRL key, then click the edges to be removed from the selection set.