How would I orient a single window?

 From:  ado1
12021.1 
I'm sure I would get there eventually but I can't be the first to run into this annoyance

What is the easiest fastest way to sort the drawing window being the wrong way round in the bottom right view window?
Image Attachments:
Size: 632.9 KB, Downloaded: 15 times, Dimensions: 1920x1080px