Say I am editing an item in a grid, in the Item column.  The vertical position of the edited item is in the middle of the grid.  If I press Ctrl+Shift+S to split the item - the item is split, but the two items - the text before the split point, and the text after the split point - now appear at the bottom of the grid.  A bit disconcerting.  Would be better if the the items stayed in the sam vertical position where the item was before it was split.