I would just include "command" line into "solution" group and then you can put exactly same commands you using in APDL to get your value. Finally, I would store it in some scalar parameter and then save the scalar parameters, using parsav command

Thank you very much. I'll try this but I found one another method. For other's information, it is by introducing stress prob to use it find result on some specific coordinates.

I think you can try several points near the main point

Yes, I did the same in ANSYS Mechanical APDL. The same I wanted to do in workbench. I got two methods, one mentioned by stanislave Polzer and other by prob method.