Yes, what @Toril and @EleenL wrote is correct. I've given up trying to catalog thousands of styles somehow. Indeed, Yamaha makes a mess of housing the styles. Unable to follow. Like @EiLeenL. I do something similar: just create a folder with the name of the song you want to 'store'. In that folder you can then place the styles, midi, sheet music, lyrics, registrations, pads, waves, etc. that you use for that song. These can easily be found via the MS Explorer and/or the keyboard. It remains a time-consuming method, but I have not yet discovered another way that works for me.