[Gmsh] Symmetry of a volume

[Marc Durufle]

I don't understand why it is forbidden to make a symmetry on a volume. 
Is there a technical point, which is difficult or ?
It is something which can be useful, because i like to have symmetric 
meshes. And i see that Symmetry command is defined for points, lines or 
surfaces, and not for volumes.
It is really disappointing :-(

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 Marc Durufle         
 Inria Rocquencourt   
 Tel : 01 39 63 56 27
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