Diamond Shaped Window

[CCarpenter]

How can I make a diamond shaped window - essentially a square window turned 90 degrees? There is no turn handle on windows. In the Transform/Replicate tool Rotate is grayed out when in a window. If I open it and go to shape or arch there is no arch that is applicable and in shape there's no way to rotate it either. I can't find a diamond window in Andersen or Marvin or in the Chief Architect Library. I know there has got to be a way and I'm sure it is simple and staring me in the face.

Thanks for your help.

CA Premier X15

[DBCooper]

Try a tudor arch, set the height of the arch to 1/2 the window height, don't specify a radius, and then check the box for reflect vertically.

 

Pretty simple but not at all obvious and it sure would be nice if you could just rotate a normal window.

 

[CCarpenter]

Eric - Funny, my search - " Diamond Windows" did not have the same results. It only returned results for windows. If I had found an appropriate answer I wouldn't have posted the question. I'm glad the search worked for you, now you have the answer!

[Leckie]

Is there something I am missing?
Why can I not select "reflect vertically"?

I know it is always something silly that is left checked or unchecked.
Thank you

[SNestor]

Create a "fixed" window 24"x24". Then go to "arch". Then select "dogear arch". Make the height 12" (or half of the window size). Select "reflect.   DONE. 

[Leckie]

Thank you Steve,

That worked but had issues with reflect still.... Turns out I had to remove the sills for it to reflect.
Thank you kindly for your advice.