GUI Scaling map view limited with high scaling

[FlyAnyTime]

The problem is that GUI scaling limits the usable map area that can be viewed. This occurs in the Mission Editor and the F10 view.

For reference, I am using 3 55-inch 4K screens and 3 smaller WinWing MFDs, hence the need for scaling (I'm old and have poor eyesight!)

It's not critical, but a nuisance.