({{, (RefLink[CreateCellID, paclet:ref/CreateCellID]) 
is an option for (RefLink[Notebook, paclet:ref/Notebook]) that specifies whether to assign a (RefLink[CellID, paclet:ref/CellID]) to cells created in the notebook.}})

OpenersNotesSection(Spacer1)Details

(RefLink[CreateCellID, paclet:ref/CreateCellID])->(RefLink[True, paclet:ref/True]) causes the Wolfram System to assign (RefLink[CellID, paclet:ref/CellID]) options to any cells created in the given notebook.

Setting (RefLink[CreateCellID, paclet:ref/CreateCellID])->(RefLink[True, paclet:ref/True]) will not affect (RefLink[CellID, paclet:ref/CellID]) options of cells already in the notebook at the time the option is set.