In the QBI section of rentals, how do you change opting for combining businesses when that question doesn't come up anymore?

When  I first updated this years rental information, it asked if I wanted to combine my businesses  if they are essentially the same.  I chose yes when I should have said no.   But when I go back through all the questions, and even at the QBI question, it just asks about QBI, and does not expand to the other questions again.  Those question series also asked about specified service trade or business (SSTB).  Again, that  entire section does not show up again anywhere for either rental.  I need to change that answer and elect to separate the businesses again.  What do I do when the question series I need doesn't show up again? 

 

If no one knows the  answer to this, is there a way I can send this question to Turbotax software help itself to see if they can answer?  If so, how?