Queue the comp to render in Media Encoder. Set the swf values in media encoder. Render in the background through media encoder while continuing work in AE.
Hi! Thanks for your tip.
I don't have the possibility of rendering to SWF in Media Encoder neither. I am using AE CC2014. I guess I need some "plugins" (or whatever it is called) to be able to render to other formats (MP4, SWF, GIF...).
SWF export was removed from After Effects CC 2014 (13.0). If you want to export a SWF file from After Effects, you can use After Effects CC (12.2.1) or earlier to do so, but keep in mind that the reason that we removed this feature is because it was not useful. You should be creating SWF files in Flash Professional, not in After Effects. If you want to play a movie that you made in After Effects in Flash Player, then create the movie in the .mp4 format through Adobe Media Encoder.