By default, the campaign duration is set at 30 seconds, but you can make a campaign length shorter or longer depending on your needs.
- Create a new campaign or edit an existing one. Scroll down to the timeline section
- Change the number beside the clock icon on the Timeline Header. Note that the duration is written in seconds, so if you want a three minute campaign you need to type "180".
- Once you hit enter, the timeline length will match the campaign duration.
Use the bar at the timeline bottom to scroll through the ruler.