DocumentationMathematicaFront EndMenu CommandsCell MenuCell Grouping
Ungroup Cells ungroups the selected sequence of cells.
This command is only available when cell grouping is set to Manual.
When there are subgroups within the selection, they are left as is.
If the selection is a range of cells at the bottom of a grouping, but not the whole group, Ungroup Cells removes those cells from the group, but does not destroy the whole group.