There is no way to change the hotkeys, but your laptop should have a 'Fn' button (or similar) to toggle the standard F key actions rather than the laptop-specific functions (and it may have an option to set which is used by default, and which requires a Shift-like key to access).
It is normal that the warning and developer window is only available in the Developer Mode version of the game (Divinity2-debug.exe).
