I want to create a flow chart screen but it is too large to fit in single screen.

Images can be laid out four times the screen size in height or width.
The whole are of a large image can be confirmed easily by scrolling the screen. As you do not need to switch over the screens, you can easily grasp the information.

You can enlarge the screen size as follows.
 
Example: To create a 1600x1200 flow chart screen on the V9100iS (800x600)