I have to say I was intrigued by the whole concept of "Ducker" as I've never heard of it, and despite following all of the clear advice on this thread, it fails to appear, option key or no, on an Aux strip, whether mono or stereo...
But there is something slightly perverse about hiding features like these.....
The problem is that from the very beginning Logic has had so many features and for me it has always historically been bad at organising them into coherent menus, etc...not that I'm saying I could organise them any better! I can understand if Apple attempt to simplify the app, but I don't want to lose any features thanks.......I worry about the future of the Environment window, for example..!