Repeatedly press SETUP SELECT switch (A) until display shows
IMPL WIDTH in left-hand column. Any changes made to the number of
rows or row spacing will automatically change the IMPLEMENT WIDTH.
The value can be manually changed with the DIGIT SELECT and 0-9 switches
to enter a specific IMPLEMENT WIDTH for special planting, such as
skip row planting. This should be done after row width and row spacing
have been entered to prevent it from being automatically changed.