When writing to the AutoCAD DWG-format you often want to set color, linetype and linewidth to By Layer.
Right now this can be done with a AttributeManager setting these attributes to these values:
| Attribute | Value |
| autocad_color | 256 |
| autocad_linetype | ByLayer |
| autocad_lineweight | -1 |
This idea is for making it possible to use By Layer as attribute value for all of these attributes. Right now it's not that user friendly to have 3 different values that means the same thing but in different attributes.
