Thanks Norton..to start with, most probably the shutters will mostly be open and the windows will mostly be shut.
However, if you look between the two, if both were shut there is a gap between them in the frame.
This was deliberate - depending on what is needed, this can receive some insect screens or even some security panels for when we are away.
Either of these can be added as needed with no disruption to the existing window / shutter arrangements.
No need for K.Pot to be doing this - I am more than capable!