Keep meaning to try this out, so posting so I remember. What this does is provides a free-form typing ‘scratchpad’ that you can use in VR or 2D, so you can do things like jot down a coordinate from the F10 map and then go back to the cockpit and see it easily enough to enter into a UFC or something. Handy!
Where I found it: https://forums.eagle.ru/showthread.php?t=229077
Just gave it a quick go, easy to install and looks like it works. CTRL+Shift+X to flip in on/off as needed. Neat.