The Align Selected Left button left-aligns two or more selected range bars.
When you select two or more range bars, the last one selected is the current event. The end boxes of the other events are white, while the end boxes of the current event are red. When you click Align Selected Left, the current event stays in place, and the remaining selected events are aligned to its left end.
To change the number of frames in an event, do one of the following:
