In the sample session, we want the Session Controller on the primary monitor so we select Session Controller as the first option. In the second list box, we select Seven Wonders.ppt <Slide Show> to occupy 2 monitors. We have configured 3 monitors till now. The requirements description says that the 4th monitor should be reserved for some other purpose. So in the third list box, We elect to skip one monitor. In the 4th and 5th list boxes, we select Metropoliton.ppt <Slide Show> and Pyramids.ppt <Slide Show> each spanning 2 monitors according to the requirements. This brings us to a screen which looks something like this:

Click Start Show button to start the PowerShow session.

You should now see your slide shows on different monitors with each of them spanning 2 monitors. The primary monitor should show PowerShow Session Controller through which you can control all the running slide shows.