How to effectively hide Recruiting structure section (Recruiting type and Organization fields)

Hi everyone!
Our client asks for hiding "Requisition Structure" section of the Job Requisition to the Recruiting Manager visibility at the moment they start to cerate a new one.
I tried by using HCM Design Studio to specifically hide "Recruiting type" and "Organization" fields, however the system displays a warning to the Recruiting Manager that starts to create the Job Requisition: "The Recruiting type and Organization fields are mandatory to populate."

Have you experience to workaround this?

Thanks in advance
Tommaso