October 7, 1989 - V1.0a:
        
        Allow pop up on lo-res screen.
        Quit using hot key.
        Changed SM and MR buttons to MS and RM.
        Added M- and M+ key equivalents - [, ].
        Added Clear All key equivalent - Z.
        Updated & reformatted Help & About information.
        
        Made Help and About appear on Active screen rather than
        always on WorkBench screen.
        
        Added second Clear key - K to avoid conflict with C key
        when in HEX mode.

        Added window to display "Already loaded" message when used
        from WorkBench.

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[unknown]                  270     626  43.1% -lh5- 7f3b Sep  1  2018 CalcKey.info
[unknown]                12044   23200  51.9% -lh5- 0ac5 Sep  1  2018 CalcKey/CalcKey
[unknown]                 3181    7697  41.3% -lh5- 23a4 Sep  1  2018 CalcKey/CalcKey.doc
[unknown]                  193     372  51.9% -lh5- 6967 Sep  1  2018 CalcKey/CalcKey.doc.info
[unknown]                  375    1798  20.9% -lh5- c4c6 Sep  1  2018 CalcKey/CalcKey.info
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total         5 files   16063   33693  47.7%            Nov 29 05:17