Hi All Just downloaded the 3 files for the terrific sounding free SM Drums. (RS5K). I have an iMac, recently upgraded to Yosemite. As seems to be suggested in the Manual, I copied the 2 sample libraries into Library/Audio/Plug ins. And the Project file onto a separate, external H.D. But I can't see SM Drums in the REAPER FX Library. I have read the Manual again but cannot see where I am going wrong. Any help on this would be greatly appreciated - can't wait to try out this drum kit! Many thanks. iMac 27 ". / 3Tb H.D. / 16 Gb Memory.