I using delete key from a grid

If i press delete key quickly, operation jams, and suddenly deletes
more lines of the grid than expected

I have to delete lines in slow mode

Is there any idea to prevent this, even if I press the del key quickly ?

(may be it jams because of scatter and insert commands, besides deleting )

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LPARAMETERS nKeyCode, nShiftAltCtrl
LOCAL loEmail
IF nKeyCode = 7
SELECT emails
SCATTER NAME loEmail MEMO
INSERT INTO emails_ex FROM NAME loEmail

DELETE
SKIP
thisform.refresh()
ENDIF

thisform.refresh