Please refer to the IRS publications for Specific Forms Field Details.
Code
This is a unique identifier for this form. Automatically generated during import.
Name Ctrl
Name Control is a value usually provided on an IRS mailing label. Use it if you know what it is. Otherwise leave blank.
Corrected Second Part
Enabled only on a "Corrected" form. Check this box for the second record of a 2 part correction.
Do Not Report
Excludes this form from all reporting.