Specify to which layout tool the design is Forward Annotated to.
"Design Settings" new option in release 2018.
In Design Editor select the (design.sdm) in the Design Tree View, and right mouse button [Design Settings]. Check [Specify the design data according to layout tool.] Select layout tool.
Specify to which layout tool the design is transferred to define design rules matching the layout tool.
The same setting can be configured in the Environment Resource File. Configure this setting when you want to specify the design separately from environment.