public void AddChapter(TimelineChapter chapter)
{
ChapterHierarchyButton newButton = Instantiate(baseButton, container);
newButton.Initialize(this, chapter);
buttons.Add(newButton);
}
public void RemoveChapter(ChapterHierarchyButton button)
{
buttons.Remove(button);
(TimelineController.Instance as TimelineEditor).RemoveChapter(button.Chapter);
}