To Work With Subobject Selection
Limit Selection to Vertex Subobjects
Home tab
Selection panel
Vertex
.
When you select a 3D solid or mesh subobject, only the vertex can be selected.
Select Multiple Faces, Edges, or Vertices
Press Ctrl+click as you select faces, edges, or vertices.
NOTE:
If a subobject selection filter is active, you do not need to press Ctrl before clicking a face, edge, or vertex.
Remove a Subobject From a Selection Set
Press and hold Ctrl+Shift. Click a selected face, edge, or vertex.
The grip, if displayed, changes from red to blue.
NOTE:
If a subobject selection filter is active, you do not need to press Ctrl before clicking a face, edge, or vertex.