If the "lights" in your window are exactly 1/2" wide, you should have no displacement. Just draw the lines for the center of the window panes on the yardage, cut and sew on the panes. If they are wider, QuiltE has good tips for you. I would sketch out the setting on paper first if you are using window frames larger than 1/2 inch. This is a kit that did all the work for me. You should have 1/4" of the yardage under the frame on each side, so if your frames are wider than 1/2", you will lose some of the yardage or distort the picture.
Yes, I am obsessed by the Aerial Lift Bridge. And I am sorry that I cannot credit the maker of the kit, but I don't remember the name.