user16584: I want each frame of video to get added on top of the previous frames. I don't want any of them to fade out. I am shooting locked down with a black background. A model moves through the frame with a light. I want to stack the frames one on top of the others so that the light moves through the frame and the last frame shows the path taken as a light trail. 
What is the easiest way to add each new frame on top of the rest? I would like to avoid putting a separate layer for each frame manually.

user11523: Use "Echo" effect. I believe it will suite you.
You need adjust it. Make number of echos equal to your frame count.

16584: <p>I want each frame of video to get added on top of the previous frames. I don't want any of them to fade out. I am shooting locked down with a black background. A model moves through the frame with a light. I want to stack the frames one on top of the others so that the light moves through the frame and the last frame shows the path taken as a light trail. </p>

<p>What is the easiest way to add each new frame on top of the rest? I would like to avoid putting a separate layer for each frame manually.</p>
 11523: <p>Use "Echo" effect. I believe it will suite you.</p>

<p>You need adjust it. Make number of echos equal to your frame count.</p>
