I am trying to get data downloads from NSRDB to replace Solar Prospector. I now have found the settings for the NSRDB download wizard to get the correct data and have the "Steps to Import a File Downloaded from NSRDB into PVsyst" I have also downloaded NREL_PSM_5.zip and placed the file in the meteo directory. I also see a Solar Prospector MEF in the same directory but I don't see the NREL_PSM as a choice for hourly data. How do I '"install" the MEF file so it becomes an import choice? Thanks, Gary