Emu XL-7 & MP-7 User's Group

some questions:
1) is there a feature in the seequenzer that allows you to change the 
starting point of a pattern. ex: i prgramm a groove and in turns out, 
that the "felt" first hit of the beat is not on the fist hit of the 
pattern. ain't too groovy when patterns change... On a software drum 
machine i had a feature, that worked like a wheel on the patterns. 
Something like that on mp7? didn't find yet.
2)i have a pattern, take it to song mode to record something 
aditional. Where is the the track i recorded? i can see all the 
tracks of the pattern switch them on/off etc. but the one i just 
recorded is always there!
3) i was playing around, checking some drum kits on a groove, maybe 
played also something on the pad (not recorded), suddenly there was a 
very high note. constantly, did not stop, when i muted the tracks. 
had to switch off the machine. now i remember that something like 
that happend already once when i played the machine in the shop. 
Anyone any experineces with that (it's not a hum, it's a sound from 
the modul.
michael