Don't think there is a 'return' like on your computer, but with software you can put all the info separated, and save as one single design. There's a cheap program for doing this sort of thing if you use .pes format (the 770 does--your machine?)..it will create 4x4 and 5x7 designs. Just move your fonts one at a time and arrange as you like and save in your computer. Go to this Youtube site and watch the demo--it is only $11 or $12, I believe. But you cannot do anything but merge designs--no mirror imaging, no resizing, no re formatting. I have the program and use it sometime when I'm lazy, but also have the P E Design software where I can write with my keyboard. It's called CombineDesign...
http://www.youtube.com/watch?v=LH-dE8t-Hf4