Can someone make a tut on how to do Motion trails behind a stickfigure? i mean like what onion skin looks like, but it shows up in the final animation

All you have to do is leave the frame and lower the alpha of the colour.

1) Make the part with the trial in 1 layer
2) Cut those frames, where the trial should be
3) Make a new MC
4) Paste those cutten frames into your MC
5) Make the amount of layers as much as the amount of trials you want
6) Make sure in layer 1, the animation begins at frame 1.
7) At layer 2, the animation begins at frame 2. But you delete the last frame.
8) At layer 3, the animation begins at frame 3. But you delete the last 2 frames
9) At layer 4, the animation begins at frame 4. But you delete the last 3 frames.
10) Go on like this.
11) Take on Edit Multiple Frames, and start from layer 2 to layer 4, lowering each alpha 20% each layer.
12) Add MC to animation at the regular scene
13) CTRL ENTER to test your movie.

Quote from Socks

All you have to do is leave the frame and lower the alpha of the colour.

I don't get you lixu =S not trying to be offending, im gonna read it again. just make 1 layer is faster rofl

but QFT what socks said. just lower the alpha and its the same as it shows on the first frame. only delete the legs of the stick for example

If I feel like it I will make a tutorial with screens