If you are using MPL to work on multiple models, that use different files and option settings, it may be beneficial to use Projects to manage the models. Projects are used to store information about open model files and windows, the default working directory, and all the current option settings. You can either place the project file in the same directory as the model or in a separate directory where you store all your project files.
The Project menu is used to open, save or close different project files. To create a new project choose the New Project command from the Project menu. This will open a dialog box where you can enter the filename for the project, the working directory, and the main MPL filename.
To open an existing project file choose the Open Project command. This will open the Open Project dialog box where you can open the project file. Before the selected project is opened the previous project is closed, along with all windows currently open. When a project is opened, MPL will re-open all the windows at the same place and size as before. Also all the option settings are set to the same values that they were the last time the project was used. MPL will also add the name of the project to its title bar for the main window so you can easily see which project you have open.
To close a current project choose the Close Project command. This will close the project along with all currently open windows, saving their place and size to the project file. All options settings will also be saved to the project file.
If you have made any changes to a project and want to save it without closing the project, choose the Save Project command. This will save all the position and size of all currently open windows along with the current options settings. If you want to create a separate project file under a new name with all the same settings as the project currently open choose Save As Project command.
If you want to change properties for the current project, choose the Properties command from the Project menu. This will open a dialog box where you can change properties for the project, such as the working directory or the main model filename.
If you work in MPL without using projects, MPL will maintain a default project file mpwin.mpj located in the mplwin directory to store the position and size of open windows and options settings.