Example of a formula that uses a yes/no question
These question formulas select the proper garage door item based on the answer to Q6 "Do you want a two-car garage?" A YES answer would include the double door item, and NO would include the single door item.
Question formula name: Select Double Door
=IF (Q6 = YES,1,0)
Question formula name: Select Single Door
=IF (Q6 = NO,1,0)