Extended Offset - Multiple Offset with ability to offset on left/right and both sides.
You can set an unlimited number of offset values. The offset distance can be measured from the original object or from a previous offset value.
The command automates the standard Autodesk® AutoCAD® offset command.
Supported objects include every curve that can be offset by the standard offset command.
If the line/Polyline is horizontal, then the offset is created above and below.