Retirement tax questions

So I would have to return to K1 questions and enter $0 in box R on K1. But how do I return to the worksheet and manually enter the line 6a and 6c? 

How to find that Keogh/SEP/Simple contribution worksheet? I am using Turbotax online so I don’t know how to jump into that worksheet and manually enter the 6a and 6c lines. 

Please help