I have a Roland E50 about 3 months old. Great machine, however, I am not at present using the arranger song list features, just playing with a church group each week. What I want to do is to adjust some of the settings eg touch, tone etc. I can do these, but can't work out from the manual how to save these so that they will stay the same next time I turn it on. Am I missing something, or can it be done? When I try and save "User Program Set" (as at P177 of the manual), it won't let me.