I've been working with a vertical display setup aligning 2 displays vertically on top of each other.
The problem I encountered was this:

I couldn't reach the OK button! (fix, press 6 times on TAB and hit enter)
The total hight of the output displays was larger than the display I used so important parts of the Advanced Display Options I couldn't reach.
It would be great if the Advanced Display Options would be resize able.
or
If the buttons would be positioned on top of the Advanced Display Options.
Cheers!