Dave Smith Instruments SYNTHESIZERS

Ok, ive done my archive searching and havnt found anything for one of
my questions:

is it possible with the keyboard (or with the editor software) to
shift a sequence by step? What I mean to do is hit "shift left" or
"Shift right" and have all the steps 'move over' by one place (value 
of step one shifts to step two, two to three and so on.  Step 16
shifts back over to step one.   If it isnt, this is one feature I
would *love* to see implimented in the future.

Also, is there a trigger mode that allows for the keys to trigger the
envelopes and start the sequencer, but have the sequencer only play
out controller values without retriggering the the envelopes?  It was
pretty late/early when I was working with the PEK so maybe I just
missed the right setting..

Thanks in advance for any of your help.

Tony