yup.... now I'm sure that really isn't all you were looking for but pretty simple. Read up on it here: http://help.solidworks.com/2013/English/SolidWorks/sldworks/c_spaning_fitting_displays.htm?id=3c4f95eb45bd458c9d0ea0b9e119cab9#Pg0
Some applications display documents in frames separate from the application frame so you can drag a document away from its initial location and reveal another underneath.
SW can display multiple windows (Menu bar>Windows>...) but I have used that only for multiple views of one document.
Never! I find dual monitors to have been vastly overated. I have two at work, but only use one for SW, the other is for everything else. However, I don't miss that second monitor even slightly when working at home on a single.