title: After Effects composition start time on timeline
body: <p>In Adobe After Effects (AE) I am working on a script for a short explanation animation. The scripting language in AE looks a lot like Javascript, only the documentation level of the scripting language is pretty low (even on the net).</p>
  
  <p>I have added two compositions in AE, which contains layers per composition. The problem is after running the script both scenes start from the beginning in the AE timeline. I want to start 'scene2' after 'scene1' is finished. But I can't figure out how to do this. I started playing with 'displayStartTime', but unfortunately after running the script, both scenes start again at 0 in the timeline and therefore overlap each other.</p>
  
  <p>Does anybody know how to fix this?</p>
  
  <p>(the duration of both scenes is 5 seconds)</p>
  
  <pre><code>var scene1 = addComposition("SCENE1", 1920, 1080, 1, 5, 30, compositionType.scene, compMain); 
  scene1.collapseTransformation = true;
  scene1.displayStartTime = 1; //start this scene from the beginning, and  therefore overrule main.
  var bg1 = scene1.layers.addSolid(hexToRgb(backgroundColor.white) , "BACKGROUND ONE", 1920, 1080, 1); 
  var art1 = scene1.layers.add(getArtworkItem(artworkList, "funk-elogo")); //add artwork to this scene, start at 1, setplop starts at 1
  art1.startTime = 1;
  setPlop(art1, 1, 1);
  
  var scene2 = addComposition("SCENE2", 1920, 1080, 1, 5, 30, compositionType.scene, compMain);
  scene2.collapseTransformation = true;
  scene2.displayStartTime = 6; //start this scene after scene 1
  var bg2 = scene2.layers.addSolid(hexToRgb(backgroundColor.white) , "BACKGROUND TWO", 1920, 1080, 1); 
  var art2 = scene2.layers.add(getArtworkItem(artworkList, "office")); //add artwork to this scene, start at 1, setplop starts at 1
  art2.startTime = 1;
  setPlop(art2, 1, 1);
  </code></pre>