Datagrid cell navigation by tabbing

[Steve C]

Is anyone else interested enough in being able to navigate within a DataGrid by tabbing that I should raise it as an issue?

I see in classes like EditTextCell that the templates assign a tabindex of -1, so this behavior seems unavailable by design, and I fear that the code to achieve it might be pretty horrendous.  But, this is one situation where "behaves like Access" would be nice.