You don't need to enter each line separately if they were the result of the same change. You can just list the first line where an amount was changed.
Example 1
You amended your return to include an Angel Investment Credit passed-through to you on a Wisconsin Schedule 3K-1.
Changed form or schedule and line number:
Schedule VC, Line 3a
Details of change:
I received a Schedule 3K-1 after I filed that showed passed-through Angel Investment Credit. I entered this on Schedule VC. That amount also carried to other forms and schedules.
Example 2
You're amending your return because the amount entered for state tax withholding on your Form W-2 was incorrect on your original return.
Changed form or schedule and line number:
Form 1, Line 25
Details of change:
The tax withheld on my W-2 was $3,124 on my original return. It was corrected to $3,214.