Specifies whether the layer list is evaluated for new layers when added to the drawing or to attached xrefs.
| Type: | Integer | 
| Saved in: | Drawing | 
| Initial value: | 0 | 
The setting is stored in an integer using one of the following values:
| 0 | Off | 
| 1 | Detects when new xref layers have been added in the drawing | 
| 2 | Detects when new layers have been added in the drawing and xrefs |