How do I exclude a fact from printing on a Family Group Sheet

1.  Go to List>Fact Type List 
2.  Select the fact type you want to exclude from the FGS
3.  Click the Edit button
4.  In the Edit Fact Type box, you will see a section called "Include when" with several options below. One option is Family group sheets. Just uncheck the box next to Family group sheets, and this will exclude the fact from a family group sheet.