ClearSizes

The ClearSizes command has been made private, so it won't show up on
function lists, but it still works for compatibility.  You can now use the
FORCE option of the  GetSizes  command in place of this command.

The ClearSizes command will clear the sizes for selected directories in all
 SRCE  listers, but not for selected files.  This will make it possible for
another  GetSizes  to re-scan the selected directory.