Probably this - or maybe touch focus
You might try turning off touch focus and face detection - then set focus to single point and touch the joystick once to centre the focus point.
"There is light at the end"
Marrakech, Morocco, January 2016
Fuji X-T1 + XF16mm f1.4 R WR
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#1 Multi aspect-ration sensor is my #1 Imagine a square 24MP for shooting portraits in Across (or whatever you like) and a wider aspect for landscape. An oversized sensor could do this with essentially the same pixel size and effective higher resolution output since you wouldn't need to crop.
#2 A menu system with context sensitive menu's that show you what is available and unavailable for all settings and leaves everything in the same place so you can see the changes when you for example chose manual vs auto focus.
#3 Downsize but add a decent grip for single handed shooting.