returns the currently selected cells in the notebook in which this function is being evaluated.
- If no cells are selected, SelectedCells returns an empty list.
- If the selection is inside of a cell, SelectedCells returns the cell containing the selection.
- SelectedCells[notebook] is equivalent to Cells[NotebookSelection[notebook]].
- If the selection is inside of an inline cell, then SelectedCells will return the CellObject corresponding to the inline cell. The setting AllowInlineCells->False may be given to cause it to return the top-level cell that contains the selected inline cell.
Introduced in 2014