Help with a window set into a thick wall, with a wider reveal and sill inside the room.

[Missmatch]

How would I draw a window inset into the outer part of a thick wall, where the inner sill in the room is much wider?   I have CA Interiors.

 

How do I also show the window sill as connecting the window to the inside wall.

 

The wall is 546mm thick.  The window type is fixed glass and is 355mm wide and about 50mm deep in total.  The window is set at the outside edge of the wall, and the inside sill runs to the inside edge of the wall.  Inside the room the reveal is 825mm wide.  

 

Any suggestions of how to show this gratefully received. 

 

Thanks in advance!

 

[Missmatch]

Eric - thank you so much for these helpful instructions.  Very useful indeed.

 

I appreciate your time.

 

Julia