Sergio,
Here's a command window based approach that will work:
Select the column on the property sheet. Then in the command window
aselobj( laCol )
laCol[1].RemoveObject( "text1" )
set classlib to YourClasslib && optional
laCol[1].AddObject( "edit1", "YourEditBoxClass" )
>How do I display memo fields in a grid?
>
>I have a form with a grid on it using a view.