The LINE SCALE (LTSCALE) command allows you to change the scale of
the length of dashes in line symbols.
To activate the Ltscale command you can:
type ltscale or lts at a Command: prompt.
Prompt: Enter new linetype scale factor<1.0000 or current value listed>: Type in any positive number and press Enter.
The length of the dashes should change.
Example: If you type .5, the dash lines are halved. If you type
4, the length of the dashes are made four times longer.