This question has been asked before with no clear answer. Would be grateful if somebody could actually explain how to use multiple Jess LNBs on a setup.
There is quite a large text about it in the Dutch section, someone who did all the steps and documented them. That won't be of much help for you, maybe google translate can help. Fact is that there are not many JESS users in non-professional environments, so you won't find much documentation on how to use it. The JESS LNB stuff can be a bit complex, for some setups you need to have a programmer ($$$). Connecting standard "quattro" LNB's to a JESS switch is a piece of cake though, everyone can do it. But then the switch itself is $$$.
I have a JESS switch, no JESS LNB's so I can't help you there.