The main window of pregap4 contains File, Modules, Information source and Options menus.
The File menu includes functions to set the files for processing, loading configuration files and naming schemes, including configuration components, starting processing and exiting.
The pregap4 Modules menu contains options for adding and configuring modules, and running pregap4.
The Information source menu contains options for specifying how the information required for the experiment files is to be obtained. These menu options can also be entered from the "Augment Experiment Files" module.
The Options menu contains options for setting fonts and colours and defining the style of the user interface.