Share Email Facebook Twitter LinkedIn Command Reference Topics in this section Commands System Variables New AutoCAD Plant 3D Toolset Commands and System Variables Reference Provides a quick guide to which commands and system variables are new in this release. Updated AutoCAD Plant 3D Toolset Commands and System Variables Reference Provides a quick guide to which commands and system variables are changed in this release. Obsolete AutoCAD Plant 3D Toolset Commands and System Variables Reference Provides a quick guide to which commands and system variables were removed in this release. Isometric Configuration (Advanced) Configure Isometric settings (Advanced).