Thanks for the help!
I know the Master Panel doesn't have an own ir reciever like the overture and the others. The reason why I'm asking about the masterlink option is because i can't get my Beolink 7000 to work two-way with the audio sources. It did at first, but after I removed and added components on it, i only get two-way communication for my video sources. Otherwise my AV9000 system works perfectly. After checking the ML Option it was set to V.OPT 2 and the Master Panel AV9000 does not work by remote in any other mode.
At first I tought it could have been the ML Option that was set wrong, blocking two-way communication for the Master Panel, but after checking my other B&O products around the house, the remote works two-way with the other televisions
but not with the other audio systems. It's probably something wrong with the remote. I bought it dead and I've just fixed it, but maybe there's something else wrong with it.
http://archivedforum2.beoworld.org/forums/p/6710/60226.aspx#60226
Anyway, thank you. Now I know the ML Option isn't the problem here. =)