[Oberon] Dual head support in BlueBottle/Native Oberon ?

The original Ceres Oberon supported - to my spare knowledge - dual headed displays (at least one color and one black & white). Is there any support in Native Oberon or BlueBottle for two graphics cards ? If not are there any hooks/plugins for such a support ? regards -- Bernhard Treutwein BdT@wildwein.de (home) Bernhard.Treutwein@verwaltung.uni-muenchen.de (work)