Setting start timecode or start frame

Use the Composition Settings dialog box to determine when the composition will begin. The name of the option in the Composition Settings dialog box is determined by whether Timecode, Frames, or Feet + Frames is selected in the Project Settings dialog box. For example, if Timecode Base is specified, you can use the Start Timecode option to specify when the composition will begin; if Frames is selected, you can use the Start Frame option to specify the frame number where the composition will begin.