Yes thanks; but it was written before the today final production firmware output, and the answers aren't what I'm looking for.
Back button focusing means that you get your focus using one of the back buttons (AE, AF or any fn-able one) and not the half depressed release button; once you're done and leave that button, the focus point doesn't change anymore and you can recompose your picture without depressing any button; if AFC is ON, it will allow you to track your subject by staying active as long as you're using this back button.
As for now it's not possible.
I come from the Nikon world, where that method is commonly used, and that is the only point I'm missing with my Fujifilm bodies.
Hence my initial question. I hope it will be implemented now or later on the X-T2.
JpP
