sorry but Turbotax doesn't use most, if not all, of that info in box 20 and in many cases some of this info is not relevant.
20Z just enter the QBI income or loss then Turbotax will later ask for all the QBI info
20AB indicates you sold some or all of your interest in the entity. it gets report as ordinary gain in the sale section of the k-1. also, you can't use the 1099-B for the basis. the broker really doesn't know what it is. you should have gotten a supplemental sales report that will allow you to compute your correct tax basis.
see k-1 instructions
https://www.irs.gov/pub/irs-pdf/i1065sk1.pdf
20zz#### is nonstandard so you have to read what it says and then research what to do with it if anything. this is one of the issues with investing in MLP/PTP
