Revit :: Project Parameters For Mass Identity Data

Is this a Revit Hard Code issue or am I overlooking something? I have created some In-Place Masses (with floor mass for each level) and I have created 2 Project Parameters for for the Mass Schedule. Parameters are Block and Sub Block as Text under Identity Data and in the Mass Category. When the Mass Heading is ticked all mass categories are ticked. So Im thinking, it should not matter what type of Mas schedule I setup. The Parameters should be available in the fields.
 
The Schedule is created as a Mass Schedule. and the Parameters show up in the field and data is populated as I expect.

I want to create a Mass Floor Schedule and the parameters are not showing up in the fields list. Also I can not Add Parameters from the Schedule dialogue window as those Parameters has already been created. When I select the Mass  Floor in a 3D view the Identity Data fields in the Properties window are mostly greyed out. The Project Parameters do not appear as Identity Data fields and the Edit Type is greyed out (not that Edit Type maters but it adds to the thinking process)