Epson SpectroProofer Supported Papers

Hello. We just received our Epson 4900 printers with the SpectroProofer option. After installing the SpectroProofer Utilities software, it is apparent to me that Epson is basically using ColorBase for the linearization. Unfortunately, when I go to select the paper type, it does not list Epson Proofing Paper White Semimatte! I will be very surprised if I cannot use this paper. Does anyone know how I can do a linearization for this paper using the SpectroProofer Utilities software? Thanks in advance for any help you can provide. Ken Fleisher