Parameters you set in various dialogs in Mass++ are saved in the parameter file and you can easily customize the location and name of the parameter file.
Select [Tools] in the menu bar and then select [Options].
The Options dialog appears.

              The Options dialog can also be displayed by               clicking the
               icon in the toolbar.
              icon in the toolbar.
            
Select [Parameters] > [Parameters File] in the Options dialog.

Click [Browse] and select the file.
Click [OK].