Hello, In DF2 layers definition in an Assura deck I have, there's some layers been assigned as: layer_name= extractCellLayer( original_layer excludeCell("....some text....") ) and after the layer definition section, an errorlayer is called with one of these layers, what does that mean? And if I need to have GDS layers defined in this Assrua deck, can I get them from DF2 layers definition directly (provided that I have layer numbers pairs)? Will I need to use extractCellLayer( ) function in the GDS layers definition? Thanks a lot and best regards, Ahmad