Need to make a Descriptive felxfield attribute mandatory for SPend AUthorized Supplier Registration

Summary:

As per business requirement , they have multiple Descriptive Flexfield in Supplier Registration and Profile Page. In the Supplier Registration one of the DFF attribute 'Employee Refereed need to be mandatory for 'Spend Authorized ' Supplier Registration where as it should be non -mandatory for Prospective and also in supplier profile Page. By the Sandbox 'Page Composer' if we are making the Required field as 'False' it is reflecting in all the Supplier Pages. How can we make it mandatory only for 'Spend Authorised' Registration Page?

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