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

Page 144 of the manual. 
ADSR is default to knobs 5 through 8 already.
Your other "wants" I don't think are possible at least directly from
the box. Variation of beats or LFO have no modulation destination;
sysex has a place for it though as well as changing the highs and lows
of keyboard preset assignments. You're looking at learning sysex. The
manual for that is in the files section.
--- In xl7@yahoogroups.com, "sp808hack" <craigbiz@...> wrote:
>
> Could someone please go into a little bit of detail about how to set up 
> the programmable knobs. Heres a list of things I want to do with the. 
> 
> -Adjust the ADSR parameters of the prestets
> -control the effect parameters i.e feedback, var ect
> -note ranges, this would be really cool! If any one hasnt thought of 
> this yet imagine the possibilities i.e &(*&king with basslines.
> 
> I know it has something to do with assigning each knob to the midi 
> addresses of the parameter you want to control, but the manual dosent 
> go into much detail about this. Thanks to you, who ever you will be.
>