Returns a driven dimension to its actual value. You can use this command only on a dimensional value that has been edited. Editing a dimensional value overrides the original value and makes the dimension not-to-scale. For example, if you override the dimensional value that is 15 millimeters (A) to be 30 millimeters, the actual size of the line that you see would still be 15 millimeters (B).

You can change the notation used to identify a not-to-scale dimension using the Symbol option on the Terminator and Symbol tab (Dimension Style and Dimension Properties).