Exhibit.

Access the Add Scale Dialog:

Open the 'Edit Drawing Scales' dialog by clicking on the scale list in the status bar or through the SCALELISTEDIT command.

Add a New Scale:

Click on the Add button to open the 'Add Scale' dialog.

In the 'Add Scale' dialog, you will need to specify the drawing units and paper units for the new scale.

Enter the Required Scale Values:

For a scale of 1" = 120', set the Drawing Units to 1 and the Paper Units to 120.

This configuration means that 1 unit in the drawing will represent 120 units on paper, matching the desired scale.

Save the New Scale:

Click OK to save the new scale to the scale list.

The new scale of 1" = 120' will now be available for use in the drawing.

References:

AutoCAD Documentation on adding scales: Adding Scales