Share Email Facebook Twitter LinkedIn Commands for Working With Coordination Models A coordination model is a model used for virtual coordination of various trades through the pre-construction and construction phases of a project. Commands -ATTACH (Command) -COORDINATIONMODELATTACH (Command) ATTACH (Command) COORDINATIONMODELATTACH (Command) EXTERNALREFERENCES (Command) System Variables CMFADECOLOR (System Variable) CMFADEOPACITY (System Variable) CMOSNAP (System Variable) PROJECTNAME (System Variable)