• CellEditDuplicate is an option for Cell which specifies whether the front end should make a copy of the cell before actually applying any changes in its contents that you request.
is by default set to True
for cells that are generated as Mathematica
• New cells generated when CellEditDuplicate->True
have styles specified by the setting for DefaultDuplicateCellStyle
for the notebook.
• CellEditDuplicate is typically set for styles of cells rather than for individual cells.
• New in Version 3.