Dave Smith Instruments SYNTHESIZERS

I think I got the problem solved with the wiring. I think it might 
have just been my earphones. I just can't seem to get the sequencer 
part down. I know how to edit the steps and all that, but I don't 
know how to change the notes of each of the steps individually. Also, 
can you change the duration of each note, such as gate time and all? 
Something to give me a sort of "303" type pattern? What about the use 
of a midi keyboard...that is only used to input notes, right? I mean, 
you can't "record" a sequence using just a midi keyboard, right? I 
really appreciate your help. Thank you.

dmn