are you saying you are using the Windows extended screen function? By this, you have a primary screen but can move your mouse to work on each independently. By prepping, do you mean you want to compose on one while having the image on the other cloned to the projector and just swap the screen images and have the projector image change seamlessly? If so, I don't think the Windows method accommodates that but some projectors do allow you to switch between inputs using their remotes. This would mean having two computers so that you could compose on one and display with the other. I've set up and used dual monitors and they can be awkward...or as you say "ugly". Why not describe your current dual screen setup and maybe you'll find someone who is skilled in doing what you want to do.
This is hard to put into words so please bear with me when reading this post. Here's my situation:
Here at the Church we run a projector display setup. To decrease the ugly transition when switching programs and to keep it from being seen by anyone who's watching I am hoping to use a "Send to Projector" kind of system.
We work off of a tower with a dual display output. I would like to have two screens, and one that goes to the projector. Ideally, I would like to be able to prep one screen, and then when ready, have the projector view it. Then I can prep the next item of business on the other screen, and display it when ready. This can be done through the remote's "freeze" setting, but extremely tedious and unreliable. If anyone can shed any light or point me in the right direction that would be much appreciated... Thanks.