I remember you already required such a feature, but if it appears it will be as an option because the scale of the virtual visitor matches the size of a human body (at least for reasonable values).
But I don't really see the need in your case. Why don't you simply zoom in the image to be able to handle the virtual visitor more easily?
By the way, I'm afraid that you'll require at the end to be able to set virtual visitor's speed, because moving in such a big design must take a long time!
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Emmanuel Puybaret, Sweet Home 3D creator
