creo3 Drawing Setup option documentation for: ignore_model_layer_status 
ignore_model_layer_status
Controls whether the model layer status is considered in drawings.
Default and Available Settings:
yes* - Ignores changes to all layer status in the models of the drawing made in
another mode.
no - Considers model layer status within drawings. You cannot use the layer
status changes stored with an applied combination state when creating drawing views, as all drawing views within a drawing can have only one layer status. You cannot apply each layer status of each
combination state to each drawing view.