Multiple monitor support

Just updated to the latest Parallels 10 for Mac and now I cannot use multiple monitors for my client. My configuration is a Mac pro with an external monitor utilizing the latest Mac OS and Parallels. Before the latest update, I had 2 desktops for my Mac and two for my Windows 7 client. Now the Windows client is a Mac window and acts differently than before. I looked on line but any changes I made like coherence have not got me back to the way I need to operate. I usually have two Windows 7 desktops open and bounce back and forth when editing documents and with a swipe go to the Mac as needed. Appreciate any help.