Maybe it's been there all the time, but I just discovered today that it's not necessary to go to preferences to rotate the hoop 90 degrees (one of my feature requests). At the bottom of the screen where the 'Hoop' and size are displayed, just click in the number field and the hoop rotates 90 degrees -- simple!
I just wanted to post in case others have not discovered this.
Edited addition: later versions require a double-click. Also, double-clicking on the size at the bottom screen alternates between inches and millimeters.