Virgilio,
No, you cannot delete these buttons. Try the following instead:
Select BUTTONSET1 on your form and add the following to the Init():

IF DODEFAULT()
	THIS.RemoveObject("cmdPrint")
	*-- or
	This.cmdAdd.visible = .f.
ENDIF

Or you could set the visible property of the buttons you don't need to .f. through the form designer and rearrange the buttons to fit your needs.

HTH
>thanks for your help but can i delete some of this buttons that i wont be needing.