Show information dialog if user tries to d'n'd content to Tundra when there is no active scene.
Show information dialog if user tries to d'n'd content to Tundra when there is no active scene.

BogusCurry/tundra,BogusCurry/tundra,BogusCurry/tundra,realXtend/tundra,jesterKing/naali,AlphaStaxLLC/tundra,AlphaStaxLLC/tundra,BogusCurry/tundra,AlphaStaxLLC/tundra,AlphaStaxLLC/tundra,realXtend/tundra,AlphaStaxLLC/tundra,jesterKing/naali,realXtend/tundra,realXtend/tundra,pharos3d/tundra,realXtend/tundra,BogusCurry/tundra,pharos3d/tundra,BogusCurry/tundra,pharos3d/tundra,pharos3d/tundra,jesterKing/naali,jesterKing/naali,jesterKing/naali,jesterKing/naali,AlphaStaxLLC/tundra,realXtend/tundra,jesterKing/naali,pharos3d/tundra,pharos3d/tundra