APO DP - fieldname in "head bar" (Interactive Planning)

Hi Experts!

i do have a question regarding the "header bar" in apo dp - planning table.

why do i see a name for the APO-Location (here: "Hamburg") but not for my APO-Product (here: "DPC1005").

i know that the Fieldname "CHAVLEXT, CHAVL, TXTSH, TXTMD, TXTLG" are important.. but what for configuartion do i need? Do i have it to configure it in maintaining the InfoObjects?

hope u guys can help me out.

Appreciate your help!

THX, Holger