ChangeFilename      <Alt O> or <Alt F><C> or <Esc><F><C>
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    Changes the name of the current file.  QEdit will prompt for the new
    name.  If the file already exists, you will be required to confirm
    that you still want to rename the file.  The current file is marked
    as being a changed file.  (An asterisk will appear on the Status
    Line preceding the filename.)  This command will have no effect on
    disk files, until the renamed file is saved.