DIM MOD allows you to toggle between automatic and manual
creation of dimension text. Automatic dimensioning, the 
default option, is always in effect when you start up
CADKEY.

Choose the AUTOMAT option to enable automatic 
dimensioning.

Choose the MANUAL option if you want to key-in dimension
text. Each line of manually-entered dimension text must be
128 characters or less. The entire text string cannot
exceed 1024 characters.
