Well, I'm no expert here but I'm cutting 3 camera's this way right now. Try the following:
Under the "Tools" drop down menu, enable two things.
Button Bars/ multiclip and keyboard layout multiclip editing.
You'll see a row of gray and green icons appear in an area above the timeline. When you select a clip and click on the gray ones, it changes that clip to whatever angle number is in the icon. If you click the green ones, it places a cut at the place where the cursor is inside the clip in the timeline. Like the gray's it cuts to whatever camera number is inside the little icon.