Business & farm

I have many (~20) passthrough entries.  It is  rental real estate LLC.

 

Some entries has:

Rental income, W-2 wages, , unadjusted basis of assets.

others have  section 1231 gain, "other income"

Of the 3-4 numbers, which goes in to the box 20, code z field?

Looks like I need a K1 for each entry?  Horrible!