Simliar to the preview functionality that was added last year with AutoCAD 2012 found in the Fillet command and BLEND tool, The OFFSET/CHAMFER command now has a preview in AutoCAD 2013.
There isn’t any other new functionality in the command – only the preview that appears prior to placing the object.
Shown below: the use of the multiple option when placing multiple offsets in one direction
Shown below: Multiple offsets in 2 directions