Check and uncheck without leaving the cell

Hi Rocky,

I like to use the double click event better for this type of X or not X. My normal is to double click in Column A with this code:

Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, Cancel As Boolean)
    If Target.Column <> 1 Then GoTo Ender
    If Target.Row = 1 Then GoTo Ender
    If Target = "x" Then
            Target = ""
    GoTo Ender
    End If
    If Target = "" Then
            Target = "x"
    End If
Ender:
    Cancel = True
End Sub