BW Modelling Tools - InfoObject Attribute Authorization relevant

Dear all.

I'm looking for the function in the SAP BW Modelling Tools to set a single attribute of an infooject as authorization relevant.

In the RSA1 transaction it was made here, but since HANA db the infoobject edit is not possible in this transaction anymore, so I search for it in the BW Modelling Tools.

Can anyone help or gimme a hint? Maybe I'm just blind. ;-)
Thanks a lot in advance.

Best regards,
Sebastian