Listen function in Mackie Control protocol

I’m very satisfied with the MCU (Mackie Control Universal) implementation of Cubase 7.5.20

Just one Issue (for me):
Shift+Project button on the MCU makes it so the solo buttons function as Listen buttons.
Unfortunately, it only works on the Master Unit and not on my 2 extenders.

Anyone having success on this?

Delta

Please take the time to search the forum. http://www.steinberg.net/forums/search.php?keywords=mackie+mcu+listen