I
think he wants to be able to edit a cell directly, as you can do in Excel, for example, instead of show a dialog to do it.
Also, I think (I think too much and do little
) that is possible to change that "way" (show a dialog) using a little trick: creating a transparent full screen panel, getting the cell screen coordinates, adding an EditText at the same position... in short, overlaying the label-cell with an EditText (only to edit the content, of course).