To rotate video clips, you require the Animated Transform video effect available in Video Edit Magic.
Follow these steps to rotate your videos with width 240 pixels and height 320 pixels (240 x 320 pixels) at 90 degrees clockwise:
1. On the File menu, click New Project.
2. Click the 'Let me specify the Project Dimensions' option.
3. From the Dimensions box, select 'Custom'.
4. Uncheck the 'Lock Aspect Ratio' option.
5. Specify 320 x 240 as the new width and height of the video. Notice that after rotation, your video will change from 240 x 320 pixels to 320 x 240 pixels.
6. Click OK.
7. Open your video clip and add it to the Timeline.
8. Add the Animated Transform effect.
9. In Effect Properties, adjust settings so that the video fits exactly in the preview window.