Is 4 seconds the duration of the take item in the sequencer?
If so, just make a dummy animation controller in the scene director of that template that is as long as the video you want to export.
Ex. If you're project is in 1080i 29.97 frames per second then a 120 frame animation controller would be 4 seconds long in the sequencer duration.
So if you want to export 20 seconds of ticker video make a dummy animation controller in the scene director of the template that is 600 frames.
#XPression