Perhaps you could try roller shades for privacy. They come in different degrees of privacy. Some allow more sunlight through during the day or help to filter out as much sun as possible. Only draw back is at night when you have the lights on, people can see through, not clearly but depends if its application is for a bedroom or living room. Roller shades allow you to keep it up to whatever height you'd like to allow the breeze through your bottom window. If you add drapery panels with blackout liner you could get complete darkness. However, the draperies will still blow when the wind comes though your bottom window.
If draperies aren't your style you could try for each large vertical panel of windows a blind like hunter Douglas silhouette. It's a horizontal blind encased in sheer fabric so you see through the sheers to outside, filters light, gives some privacy throughout daylight and allows you to view outside ( though not the same as having no window treatment) and when dark falls to turn the blinds so they close just like any other horizontal blind.
Hope this helps.

Hi Kathy - I think shutters might be your best bet too - anything else is going to flap about in the breeze ! There are some online places where you measure yourself and they make them to size - or some places that come out and measure - but they arnt cheap ! But in my honset opinion - they are a good investment as will last years ! John Lewis have some in most stores If you are UK based ?!? Best of luck with it all ! :-)

Are you referring to the vent for ventilation? Or do you need to open the window for ventilation. Look at Averte sliding panels from Horizon Shades @ www.horizonshades.com. They slide on a track, like ripplefold curtains, but don't flop around. Stackback is minimal. I think there is a short video on that website demonstrating the use.

Those Shades look interesting...but I am not sure if they would work in my situation. I probably need to treat each window panel separately . The door needs it own covering, the middle window needs to be open at bottom for the fresh air but I would like the top to be closed for privacy and the left window could be anything.
Would 3 silhouette blinds look dumb?

A horizontal sheer shading would work there, even if you need to split them into 3 sections. I would definitely recommend the largest vane size available to help maintain the most of that great view that you can.

There has been some good suggestions here. I think you should take what you have learned and have a professional help you with this situation. You have a lot going on with this. Where are you located?

Wahtever you choose, make sure you ask about cleanability. Some fabrics can be submerged, others cannot. Light Filtering cellular shades are washable, black out ones are not I always suggest fabric samples and don't be afraid to get them dirty and see what happens. http://cellularwindowshades.com/samples.html

Just to make it clear - this window is on the wall right next to the door that opens out. Click on the photo to make it bigger