Okay then! This is a bit lengthy so I’m gonna put it under a cut

First you wan to import your chosen gif into your Flash stage. I find that some gifs tend to be rather unusable for one reason or another, either they refuse to import or the frames are altered to the point where you can’t tell what’s what. I have no idea why this happens, so I just look around until I find one that works.

Here I’m using a gif of a conga-ing demoman

Create a new later and convert them all to blank keyframes

Now start your tracing! I find a sketchy outline at first helps, then you can go back with more detail

To export the gif (make sure to turn off the layers you don’t want), go to publish settings and choose gif

Now, go to the other tab (GIF) and playback choose ANIMATED, not static. Took me freakin ages to figure out why my gifs never worked. Now you just-

…oh right, and make sure to save as often as possible

(This is what the gif looked like in flash, note the randomly colored backgrounds. Once again, not sure why it does this)

And there you have it! I certainly hope this helped!