Picture Arrange Transition
You can use the Picture Arrange Transition to place the two video clips on the same video window, at the same time. This transition provides you with presets to quickly place the videos side-by-side horizontally, vertically or diagonally. This transition is very useful when you want to make a comparison.
The Picture Arrange transition provides presets for the most common video arrange placements. To use a preset, click the appropriate icon in Presets. The green colored rectangle represents the first video clip and the blue colored rectangle represents the second.
Arranging the Videos
You can position the clips by dragging the green and blue rectangles (marked with a "1" and "2" respectively) using the mouse. The green rectangle represents the first clip and the blue rectangle the second. To change the size of the picture, drag the sizing markers at the corners and sides of a rectangle.
Actual Co-ordinates in Pixels
You can change the size and position of the two rectangles by entering numbers directly (in pixels). The dimensions of the screen to fit them into is determined by the dimensions of the current project. For instance, if the project has dimensions of 640x480, there is just enough room to arrange two rectangles 320 pixels wide side-by-side.
By default the background color on which you arrange the two video clips is black. You can change the background color to any color of your choice. To select a custom color, select Choose. To select a color present anywhere on the desktop, drag the eye dropper over the any object. When you release the mouse button, the color the eyedropper is currently over is selected.
Swap video clips for this transition
When you arrange the pictures of the two video clips so that they overlap each other, the second clip appears over the first clip. Check this option if you want the first clip to overlap the second clip.