You need to trick the combo to open Bein but make sure you are on the latest Mars firmware.
With the dish at 8w you need to scan in the 8w Bein frequecies with the Combo in the 7w menu without the box going to 7w.
Not always possible if your dish is high up but i did this by parking dish at 8w disconnecting the motor and then cable going directly to LNB then scanning 8w frequencies on the 7 west position in the menu of the Combo.
I guess you could also use diseqc 1.2 and inch the dish while at 7w menu to 8w and scan.