Not a single mouse click, but you could count a double click or rightclick.

If you want to try, rightclick on the worksheet tab that should have this
behavior. Select view code and paste this into the code window:

Option Explicit
Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, _
Cancel As Boolean)
If Target.Cells.Count 1 Then Exit Sub
If Intersect(Target, Me.Range("A:A")) Is Nothing Then Exit Sub

Cancel = True 'stop editing in cell
If IsNumeric(Target.Value) Then
Target.Value = Target.Value + 1
End If
End Sub

Private Sub Worksheet_BeforeRightClick(ByVal Target As Range, _
Cancel As Boolean)
If Target.Cells.Count 1 Then Exit Sub
If Intersect(Target, Me.Range("A:A")) Is Nothing Then Exit Sub

Cancel = True 'stop pop up from showing
If IsNumeric(Target.Value) Then
Target.Value = Target.Value - 1
End If
End Sub

I used any cell in Column A. You can change that in both spots if you want.
Doublclicking will add 1. Rightclicking will subtract 1.


smay wrote:

Is there a formula or funktion, who kan count mouseklik in a cell

--

Dave Peterson