Having clicked one too many times on one window, only to have it click on the parts underneath (in the Editor), or click on an unwanted item in flight, I decided to solve the problem with yet another mod.
Major Release Update, 1.10.5
Added Settings page
Added new setting to specify Focus follows Click
Added code to have the focus follow the click instead of the mouse, for both editor and flight modes
Added initial window to select mode, shows one time only