DIM VAL allows you to change the displayed dimension 
values using the current representation mode, for example,
feet and inches.

Select the dimension for change.

The Prompt Line displays the value that represents the 
true size of the dimension, ignoring scale or previous
dimension value changes; for example, manually-entered
dimensions. This tells you whether or not the dimension
has been changed previously.

Using a value greater than zero (0), enter a new dimension
value for the selected dimension, and press <Enter>. Note
that only the dimension value changes, not the entity
itself.

The text is redrawn with the new dimension value but with
the same tolerance value it had before the change.
