Examples:
pushbutton([TOOLBAR], "@0V@Payment Cards (Ctrl+Shift+F3)", "=KRPL", "Ctrl+Shift+F3");
pushbutton([TOOLBAR], "@BY@Carry Forward (Shift+F5)", '?', "Shift+f5", { "process":va01_headerCarryForward});
pushbutton([TOOLBAR], "@0V@Payment Cards (Ctrl+F4)", "=KRPL", "Ctrl+F4");
The specified FKey will only be assigned if it is available for assignment on the screen. If the FKey has already been taken up by SAP, then SAP will automatically assign the
next available FKey when pushbuttons are placed on TOOLBAR
