Hi Mehdi,
It is in fact a Smode 8.4 feature, but skeleton animation are still not supported
Some example:
https://smode.fr/doc/ref/compo/3d/specials/volume-layer.htm?Highlight=animation%20fbx
In Smode 8.3 we already have a suppport of cryptic PC2 mesh animation format:
https://smode.fr/doc/ref/compo/3d/3d-Tools/pc2-cache-file.htm?Highlight=animation
Alembic (ABC) is for sure our next target
Hoping this can helps