i dont think its overly important to setup your indigo in cubase...
this link
http://www.access-music.de/downloads...t=indigo2#cat5
will take u to the download section at the access web site. u will find a patch names thing for the indigo2, to be used in SX.
i have never used this, so i cant recomend it being n e good...also im not sure if this is exactly what u r after..i hope its of some help!