You can automatically create timelapses of your work by using the screencast feature in the SFM under the help menu. This will automatically save a .png file inside the screencast folder every time you release the mouse or a hotkey. you can use any encoder you like to make a movie from the image sequence.
we tend to use ffmpeg which can be found at http://winff.org/
here's the command line arguments we like to use.
-y -loglevel panic -sameq -f image2 -i %9d.png -vcodec mpeg4 -aspect 16:9 -s 1280x720 -r 23.976 -vb 8000000 <FULL_MOVIE_PATH>
here's a snapshot of our settings, but you can customize however you want.