GUI\ Command Language Summary
BUTTON : Associate a command with a button
END : Read parameters from window and set variables accordingly
GO : Activate the currently defined window
MENU : Create a pulldown menu for next buttons
SUBMENU: Create a submenu in the current menu
PANEL : Define or delete an input window or menubar
WAIT : Wait for GO button in the current window
URI : Open any kind of URI, e.g. html link or file name.