I use BBAF exclusively and like it. I also have previously set up FN buttons and some other buttons with various alternative AF modes. I have always made those buttons be AF area mode + AF-ON which allows me to push just one button to both autofocus and utilize the particular AF area assigned to that button. However, I was reading thru Steve Perry's new e-book on Z9 setup settings and he says he likes to put the alternative AF area modes on different buttons only as AF area mode because " I personally like keeping my AF separate since there are times I want to pause focusing but not jump out of my AF area." So, does this mean when using those alternative buttons for a different AF area that he is having to simultaneously press the alternative button as well as the AF-ON button (backbutton) in order to achieve focus using that AF area mode? That seems difficult. I think I must be mis-understanding something. So, for example, he may have his AF area mode selected as Wide area- S and then configure the FN1 button to be AF area mode - 3D. But in his setup instructions, he just uses AF area mode, NOT AF area mode+ AF-ON. When I do this, pressing the FN1 button does not autofocus at all and I have to press the AF-ON button at the same time for it to be in that AF area mode plus actually AF. Am I understanding what he is doing correctly?