Is it possible to turn the touch lock on and off using a shortcut? I know that you can completely turn off the touch or lock the device using a shortcut, but it would be more convenient to use the touch lock for me. I often want to have the touch locked, but at the same time I would like to be able to light up the screen with a touch and be able to unlock it with one hand - all of this is provided by the touch lock function, but to turn it on/off I have to delve into the menu, I would prefer to do it with a shortcut.