Targetting none?

[Sicno]

While this doesn't directly address your issue, have you tried to increase the size of the minimap? You can increase it up to 150% of its original size. Go into HUD editing, select the minimal and press Ctrl+Home to cycle through its possible sizes. (That's the default key command for it anyway. Can be changed in hot key settings)

Thanks, but I've known this all along. Increasing the size of the minimap doesn't increase the ammount of terrain displayed, and it being circular doesn't help either.

This is a sample of what my UI looks like

[Niwashi]

Increasing the size of the minimap doesn't increase the ammount of terrain displayed

You can zoom in and out on the minimap from the + and - buttons on its right edge. That helps somewhat, though it only has a few zoom levels, so doesn't give as much flexibility in that regard as the main map window has.

I agree that there certainly should be a simple way to just remove your target focus without closing windows in the process.