Add double hi dpi button on display setting

The Hi dpi button should be more accessible. The high resolution on computer keep increasing, so more users will be confront to this option. And this parameter is pretty hard to find. So it would be great if it appears on the display setting. A small button with the same scrolling options with "For high resolution" mentionned between ().

If you dont know what double hi dpi enabled make on a high resolution laptop (2560 x 1440, for myself). Your whole screen seems in scale 0.7. So everything is tiny and everything seems far away from you.