R0/0/639/199
R6/3/83/40
big2C/334/14/
H E L P

big2C/44/18/
UNDO
text/107/41
If you have made a mistake, select UNDO from
the control panel. The last line entered in the
file will be erased and the picture redrawn. 
Since some changes are subtle, you may have to
select UNDO several times in a row to delete
the item you wish removed. 
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text/105/96
    UNDO creates a backup file on the disk
called WORKFILE.BAK. This file is a copy of the
current picture file before the UNDO.  You can
delete or rename WORKFILE.BAK as you prefer. 
~