AXIAL FORCE & BIAXIAL MOMENT DESIGN (H1-1a) 1

Don’t use software if you don’t know what it does

Actually I do know how to use this software, but I want to learn more deeper. In addition, your comment representes disrespecting personality.
Regards

Gusmurr has a point. There is a difference between knowing how to use a software, and understanding what it is doing.

But to help you toward that second point, in this section, SAP is listing different parameters that have been input for thr nominal axial and bending capacity of your member, presumably in advance of performing an interaction check per AISC section H1-1.

This allows you to easily verify these input values to be sure they are correct.

In SAP2000 click Help and then Documentation. I assume you're using AISC 360-16. That pdf file should explain these variables. Skimming through there quickly, I see K1 and K2. I'm sure the others are there also.