yes * , no

Controls the use of the numeric names of layers as layer IDs when you export Creo models. If you do not explicitly assign IDs to layers when you export models with numeric layer names, the numeric names of layers are automatically used as the layer IDs. For example, when you export models containing layers with numeric names to the IGES format, the numeric names of layers are exported as the IGES layer IDs by default. For assemblies, IGES layers are automatically created with the same names as the components of the assemblies.