Hey,

> you should ask the creator Jeroen De Dauw directly.

Don't panic, I'm on this list :)

> have multiple Layers of Markers in the wikimedia Maps extension
> using openstreetmap?

Like Tim pointed out, OpenLayers does support this feature, however, Maps does not. It'd would not be to hard to implement, but requires coming up with some way of defining layers in wikitext first.

Cheers

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Jeroen De Dauw
http://www.bn2vs.com
Don't panic. Don't be evil.
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