 KEYDEF.COM is a DCL procedure to downline load the programmable
 function keys on a VT-240. The user is prompted for an appropriate
 key number, and then a character string to store in the key.
 The character strings are stored only in the "shifted" key. This
 procedure does not support any of the locking or unlocking
 features of the VT-240.
 
 On-line help is available by entering a question mark to the
	 prompt for a key number. Control characters can be stored in

 the keys by using the "caret/character" convention. For example,
 ^M designated carriage return, ^[ designates escape, ^A designates
 ascii character "01", etc.