This command applies the same offset multiple times in series
from the original polyline.
Specify offset distance <20.0000>: 25
Enter Number of Repetitions <1>: 3
Select object to offset or <exit>: pick a polyline to offset
Specify point on side to offset: pick a point
Pulldown Menu Location: Edit > Offset
Keyboard Command: offset_mult
Prerequisite: Linework to offset