This is NOT an answer to the question. This is just generic blurb as typical by tech support who does not listen. You answered "why" you might do it and NOT how to fix it once you try to enter the information and find out that the ISS field is required field even though the software does not have it labeled as a required field.
As I struggled on the phone with tech support for 90 minutes. NINETY MINUTES! There is a bug in the software. And no one recognized that.
Here are the details AGAIN! Once you enter the details, you are stuck.
1) You can't undo it and you can't uncheck.
2) you don't know until you start that the ISS is required.
3) you can restart the software as many times as you want, because that is what they made me do. but it will not reset this section.
Bottom line, not all IDs have an ISS yet your software sadly assumes that they do.
