Jitter supports scenes of up to 120 seconds (2 minutes), in length.
New files are set to 4 seconds by default, but you can easily modify the scene duration by dragging the duration bar in the animation timeline:
Alternatively, select the scene layer and opening the Animate tab to specify the duration:
✏️ Note: If you need scenes longer than 120 seconds, we recommend using another video editing tool (iMove, Premiere…) to stitch them together.