Personal setting "company code" in Me21n

Hi all, 

I request to marque insivible by default the personnal mounting "company code" successful Me21n.

I tried by SHD0 with the enactment "Invisible" but my trial is KO.
I did the variante's activation and user's affectation.
Do you person immoderate thought wherefore my trial with SHD0 is KO oregon possibly an different thought successful SPRO?