To anyone struggling with small fonts on hi-res monitors...
I just discovered the enhanced Magnifier now on Win10 1803 (I assume 1809 as well if you've been cursed with it). Ctrl + Alt + M fires it up. It has thee different different view settings; Docked, Full Screen, & Lens. I've been using the Lens setting for working in the headers. I especially like the fact that the Lens height and width is adjustable on the fly with keystrokes. The only thing I haven't figured out is a way to toggle the Lens off/on without fully closing Magnifier.