wildfire4 config.pro option documentation for: INTF2D_OUT_IGES_LAYERS_WITH_ID            

intf2d_out_iges_layers_with_id

yes, no

determines the export of layer ids of pro/engineer drawings to the iges format.

• yes—exports the layer ids of drawings, instead of layer names, to the iges format. the layer ids are mapped to iges levels.

• no—layers are mapped to iges levels by their names and internal ids, regardless of their user ids. this is the default value.