Sorry for the confusion. “Stereo Room” is an algorithm from the original SP2016 processor. By default, the SP2016 Reverb plug-in uses the Stereo Room algorithm, that is why “Stereo Room” is displayed at the top of the screen. If you click on “Program” and change the algorithm, the display will change.
2016 Stereo Room is an older version of this plug-in which was replaced with the SP2016 Reverb plug-in that you purchased.