Viivi Argument-Command Window

The Viivi argument-command window has dark-blue background by default.
It does not have a line-number field on the left-side different from the input-port window.

Usually the argument-command sequence provided on the command line at booting Viivi will be expanded in this window.
When an argument-command script file or a project file is specified, with the argument-commands "-a" or "-p', respectively, then the contents of the corresponding argument-command script file with a filename-extension ".vacs" will be loaded in this window.

Only when Viivi is in the initial or the finished states, the user can edit the contents of the window and load an external argument-command script file into the window from the pop-up menu.

Once the argument-command script started to be processed, the user cannot edit the contents in the window even in the halt state, until all the processes are over or until the user forces to quit the process by clicking the emergency-abort button on the controller.