You can save the project file with a different name.
From the [File] or [Project] menu, select [Save Project As...], the Save Project As dialog box will open.
 
Specify the save folder and separate project filename (*.mtpj) on the dialog box. The project file is saved in the specified folder with the filename.
| The files registered to the project are the same as those in the original project (the files registered to the project are not copied). | 
| If there is already a subproject file in the same folder and with the same file name (excluding the file extension) as the project file, then the project file will not be saved correctly. | 
| If you save the project file with a different name from the original project file, and then modify one or both of them, then the project files will have different contents. |