Dear Antonio,

It's very simple to do so :

1) Add all of the tables which you want it to use in the form in the Dataenviroment of the form

2) Set the perfect relation between the tables

3) Insert all of the individual fields into the form by drag and drop method

4) Drag and drop the child table into the form where by it will be dropped in the grid form .. but as such you said, what exactly you mean by editing the
grid ?

Yes for Insert you can make the property addallownew = .t.

so by pressing the down arrow you can add it

for deletion you can keep deletedmark = .t.

and if you want to call some procedures while deleting for alertness that you can write in the Deleted() event of the grid,which will be called by :