public static void IncreaseIndent(OutlinerNote row, TreeListView outlinerTree, bool applyStyle) { if (!CanIncreaseIndent(row)) { return; } int activeColumn = DocumentHelpers.GetFocusedColumnIdx(outlinerTree, row); bool isInlineNoteFocused = DocumentHelpers.IsInlineNoteFocused(outlinerTree); ObservableCollection <OutlinerNote> parentCollection = row.Document.GetParentCollection(row); int idx = GetNoteIndexAtParent(row); parentCollection.Remove(row); OutlinerNote newNote = new OutlinerNote(parentCollection[idx - 1]); newNote.Clone(row); DocumentHelpers.CopyNodesRecursively(newNote, row); parentCollection[idx - 1].SubNotes.Add(newNote); parentCollection[idx - 1].IsExpanded = true; row.Parent.UpdateParentCheckboxes(); newNote.UpdateParentCheckboxes(); if (applyStyle) { outlinerTree.MakeActive(newNote, activeColumn, isInlineNoteFocused, new EventHandler(ApplyStyleAfterMakeActive)); } else { outlinerTree.MakeActive(newNote, activeColumn, isInlineNoteFocused); } }