Had a little play with a GX10 in Warehouse Express's new shop in Norwich today. The salesman was a nice bloke and very helpful, but knew more about Canons and Nikons so we got stuck on what must be easy if you know it: I was using the 200mm end of the zoom and focussing on something outside the window. When I zoomed back to 50mm, it promptly focussed on the window frame. So, how do you: 1) Hold the focus still? 2) Change the focus points?