Just add new satellite to your�diseqc.conf file and use rotorng plugin to scan satellite or transponders.
Below is an example of my�diseqc.conf. Here Sirius is on LNB1 output, LNB2 is Amos, LNB4 is HotBird. LNB3 is commented out, there is nothing on LNB3 output. Take a look carefully on a structure and write your own diseqc.conf.
# Sirius �LNB 1
S4.8E 11700 V 9750 t v W15 [E0 10 38 F0] [E1 10 38 F0] W15 t
S4.8E 99999 V 10600 t v W15 [E0 10 38 F1] [E1 10 38 F1] W15 T
S4.8E 11700 H 9750 t V W15 [E0 10 38 F2] [E1 10 38 F2] W15 t
S4.8E 99999 H 10600 t V W15 [E0 10 38 F3] [E1 10 38 F3] W15 T
# Amos LNB 2
S4.0W 11700 V 9750 t v W15 [E0 10 38 F4] [E1 10 38 F4] W15 t
S4.0W 99999 V 10600 t v W15 [E0 10 38 F5] [E1 10 38 F5] W15 T
S4.0W 11700 H 9750 t V W15 [E0 10 38 F6] [E1 10 38 F6] W15 t
S4.0W 99999 H 10600 t V W15 [E0 10 38 F7] [E1 10 38 F7] W15 T
# Sirius LNB 3
#S5E 11700 V 9750 t v W15 [E0 10 38 F8] [E1 10 38 F8] W15 t
#S5E 99999 V 10600 t v W15 [E0 10 38 F9] [E1 10 38 F9] W15 T
#S5E 11700 H 9750 t V W15 [E0 10 38 FA] [E1 10 38 FA] W15 t
#S5E 99999 H 10600 t V W15 [E0 10 38 FB] [E1 10 38 FB] W15 T
# Hotbird LNB 4
S13.0E 11700 V 9750 t v W15 [E0 10 38 FC] [E1 10 38 FC] W15 t
S13.0E 99999 V 10600 t v W15 [E0 10 38 FD] [E1 10 38 FD] W15 T
S13.0E 11700 H 9750 t V W15 [E0 10 38 FE] [E1 10 38 FE] W15 t
S13.0E 99999 H 10600 t V W15 [E0 10 38 FF] [E1 10 38 FF] W15 T