Retirement tax questions

I have tried every single work-around for this problem that Turbotax offers. I know I have to enter a value on line 18 of Schedule SE for deferring taxes. The problem is, Turbotax online does not offer any kind of ACCESS to forms in order to adjust the value. I can only delete forms.

 

I've been going in circles for two months and cannot submit my taxes. This is beyond frustrating.