Sets the default label associated to a key.
fgl_setkeylabel( keyname STRING, label STRING )
fgl_setkeylabel() associates a text to a function or control key. Default action views (i.e. buttons that appears in the control frame of a window) will get the label displayed instead of the function or control key name.
This function defines the default key labels for all dialogs. There are different levels of key label definitions.