How to rotate a fixed glass window 45 degrees

[BelfastCNC]

 

I placed window in a wall then converted to symbol 

then i placed symbol in a new wall and opened symbol and rotated 45 degrees on Y axis 

Now how do i get rid of the wall and save symbol as just a window.

 

or is there a better way to rotate a window

 

[BelfastCNC]

I loose one set of lites.  I used a 32x32 fixed window, 2x2 lites, no sill Arch= Dogear 16" with reflected Vert Full Arch and this is what i get