To export to the Modelica file

1. In the Model Browser, select the Block to export.
2. Click File > Export To > Modelica.
   
3. In the Modelica Export Options dialog:
   
   • specify the export options (select whether the unnanoted SysML properties should be exported as variables, parameters, or not exported at all)
   • choose whether to generate diagram layout annotations 
   • specify the output of the Modelica file.
     
4. Click OK. The Modelica (.mo) file is generated.