Hello Eyup's
Yep. If I temporarily disable the AJAX on that page the PopUp form for inserting is also shown.
I could not try your second suggestion, since as I said, the button for inserting is outside the grid and I don't have access to the GridEditableItem (...or do I?)
Anyways, I do need the AJAX, so I would appreciate any further attempt to make it work as needed.
Thanks