Window Issue

[Paul715j]

Hi,  whilst appearing the correct way round on the plan view, my windows appear with the glass on the internal wall rather than the glass on the external wall.  My design needs to glass on the external with a window sill recess on the internal wall, whilst I've looked through the window settings I can't seem to reverse the look.  Also, I need to add window handles on the outside two windows, any ideas?  Thanks