Scaled offset tool
To offset a path, select the Offset tool and position the cursor over the path. When the cursor appears, click and drag in the direction you want the offset to appear. The offset distance will appear as you drag the offset. The distance will be a scaled value using the scale set in the CADdocument panel, and the units set in the CADtracker panel.

Click once on a path without dragging to access the numeric input dialog box to numerically create the offset in scale.