To toggle between full screen for a code pane docked within the Visual Studio's main window you can use Shift
+ Alt
+ Enter
(ref: http://visualstudioshortcuts.com/2017/).
However, if you have multiple monitors and have dragged a code pane to a different monitor, this does not work (despite ensuring that that is the active pane/window). i.e. You still see this code pane's title bar, which takes up 2 lines for the window header, 1 line for the file tab, and another line for the navigation dropdowns. e.g.
Question: Is there a way to hide / remove any of this, to maximise screen real estate for code?