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.
WARNING: this is a prototype feature that will fill your hard drive with images over time if you do not manage the folders and delete the image sequences manually.
you can use any encoder you like to make a movie file from the image sequence.
we tend to use ffmpeg which can be found at http://winff.org/
here's a snapshot of our settings, but you can customize however you want.
if you want to copy and paste our settings:
-y -loglevel panic -sameq -f image2 -i %9d.png -vcodec mpeg4 -aspect 16:9 -s 1280x720 -r 23.976 -vb 8000000 <FULL_MOVIE_PATH>