# Use CellGroup[] in current Notebook?

GROUPS:
 Aaron Naiman 2 Votes (Posted to StackExchange a week ago, with no response.)I have used the Option Inspector to set CellGrouping to Manual for the current, selected Notebook. Nonetheless, the following does not group these two cells together: CellPrint[CellGroup[{TextCell["hello"], TextCell["goodbye"]}]] Also, adding the second argument to CellGroup[] to specify which cell should be open, does not work.Please note that both of these work if I create the cells in a new Notebook, created with CellGrouping -> Manual.I saw the same behavior with Cell[CellGroupData[...]].What am I missing?
 Kuba Podkalicki 1 Vote Unfortunately there are many issues related to cell groups structure: SE / Cell @ CellGroupData in Cells familyAnd my rules of thumb, unfortunately, are: only use CellGroup+TextCell+ExpressionCell and friends, which are a higher level collegues of CellGroupData and Cell, for small snippets rather than serious work. Why? I don't know, maybe I just can't handle them but writing your code in a low level form works: NotebookWrite[EvaluationNotebook[], Cell@CellGroupData[{Cell["hello"], Cell["goodbye"]}]]  don't expect much from Manual CellGrouping with respect to other related options. Same reason. You want details? You can as WRI Support.