iv worked with installing sky , im not sure about what you want if the satellites are close enough to each other, i do remember that for some if close enough u can offset your dish slightly to pull in both satellites, but on doing this the signal will be weaker to your orignal as its slightly offline,
sorry i cant help you more on that as my knowledge was mainly for sky, but you should be able to google search for more info
ps , sometimes an adapter to hold 2 lnb's on the dish one for each satallite can do the trick , difficult to line up unless you have a meter which reads more than one satellite
