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From SofTutor for MicroStation 3D - Extrude Surface or Solid
Topics & Keywords covered in this video are:

Extruding A Line 3D Surface Solid Ortho View XY Profile
Extruding A SmartLine 3D Surface Solid Ortho Element XY Profile
Extrude Command Solid Surface Ortho Element XY Profile
Extruding A 2D Circle To Create A 3D Cone Solid Ortho Element XY Scale Profile
Creating And Extruding A Complex Shape Wedge Surface Ortho Element XY Profile
Construct Revolution Command Solid Surface Point Angle Element 3D Axis
Construct A Surface Revolution From A 2D Profile Solid Point Angle Element 3D Axis Iso
Phong Rendering To Show Surface/Solid Models Point Angle Element 3D Axis Iso
Construct A Solid Revolution From A 2D Profile Surface Point Angle Element 3D Axis Color
Revolving A Surface From The Isometric View Solid Profile Point Angle Element 3D Axis