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Theo,

Yes, I thought it should be something like that. Applying "keys" without being aware of it. Like recognizing a photo of George Clooney or your auntie Jane.
And as you say, that is very difficult to explain. How do I explain that this person is auntie Jane? You just KNOW. |t |t |t

I will try to discover these very subjective "feelingy" features. B)

Thanks, once again!!!

André