How can I adjust the Director's View?

For more concise framing, switch to Director's View to position your shot.

First, make sure the shot you wish to adjust is selected on the right side.  It will have a red edge if it is selected. 

Then tap the Director's View icon to the right of the pencil, in the top right corner. 

Now that you have a full view of the shot, tap 'Edit' in the top left corner.

Then, similar to when you alter your view of the set, use two fingers to zoom in, out, move up, down, to the right, and to the left.  You can even tilt by twisting so one finger raises higher while the other one lowers.  

Be sure to maintain the contact of both fingers on the screen.