Animated Artwork - How to ?

Hello,

I would like to try the animated artwork and try to read a lot of information but.... Don't find the way.
https://forum.kodi.tv/showthread.php?tid=215727
https://forum.kodi.tv/forumdisplay.php?fid=110

So I do this first, just go on a movie (imitation game 2014) in my files, and change poster.jpg by one poster.gif and it doesn't work.
After in my advancedsettings I add this :

Quote:<advancedsettings version="1">
<settings>
    <setting id="scan_recursively" value="true"/>
</settings>
<video>
  <excludefromscan>
    <regexp>[-\._ ]sample|extrafanart|trailer|extrathumbs)[-\._ ]</regexp>
  </excludefromscan>
  <excludefromlisting>
      <regexp>[-._ \\/](sample|extrafanart|trailer|extrathumbs)[-._ \\/]</regexp>
  </excludefromlisting>
  <excludefromscan action="append">
      <regexp>[\\/]extras|Extras|1900 Extras|1900 Extras [VO]|1900 VOSTFR|1900 VO[\\/]</regexp>
  </excludefromscan>
  <excludetvshowsfromscan action="append">
      <regexp>[\\/]extras|Extras[\\/]</regexp>
  </excludetvshowsfromscan>
</video>
<audio>
  <excludefromscan action="append">
      <regexp>[\\/]extras|Extras[\\/]</regexp>
  </excludefromscan>
</audio>
<videoextensions>
  <add>.gif</add>
</videoextensions>
</advancedsettings>

Perhaps I do a mistake, and have to put under video ?

After I try to rename my artwork in animatedposter.gif

But It doesn't work... So if anybody can help me, It would be great . Thanks by advance