Editing Objects with AutoCAD - Section 4

This fourth section of the free online AutoCAD course includes chapters 16 to 21.
Chapter 16: Selection Methods
16.1 Object selection methods
16.2 The use of selection filters
16.3 Quick selection
16.4 Select similar
16.5 Object groups
Chapter 17: Simple Edition
17.1 Copy
17.2 Shifts
17.3 Delete
17.4 Climbing
17.5 Crop
17.6 Extend
17.7 Rotate
17.8 Length
17.9 Align
17.10 Unite
17.11 Split
17.11.1 Start at a point
17.12 Stretch
17.13 Decompose
17.14 Display Order
17.15 Undo changes
Chapter 18: Advanced Editing
18.1 Offset
18.2 Symmetry
18.3 Matrix
18.3.1 Edit array
18.4 Splice
18.5 Chamfer
18.6 Merge curves
18.7 Edit Polylines and Splines
18.8 Edit objects with
parametric constraints
Chapter 19: Clamps
19.1 Clamping Modes
19.2 Multifunction Grips
19.2.1 Clamps in Polylines and Splines
19.2.2 Matrix clamps
Chapter 20: Shading, Gradients, and Contours
20.1 Shaded and degraded
20.2 Contours