Multiple selection drop-down list

[angelod]

Hi guys,

I want a drop down list, with multiple selection, but i don't know how to make it to work in multiple cells, not only on "C2" like in this case.
Thanks


Private Sub Worksheet_Change(ByVal Target As Range)
Dim Oldvalue As String
Dim Newvalue As String
Application.EnableEvents = True
On Error GoTo Exitsub
If Target.Address = "$C$2" Then
If Target.SpecialCells(xlCellTypeAllValidation) Is Nothing Then
GoTo Exitsub
Else: If Target.Value = "" Then GoTo Exitsub Else
Application.EnableEvents = False
Newvalue = Target.Value
Application.Undo
Oldvalue = Target.Value
If Oldvalue = "" Then
Target.Value = Newvalue
Else
If InStr(1, Oldvalue, Newvalue) = 0 Then
Target.Value = Oldvalue & ", " & Newvalue
Else:
Target.Value = Oldvalue
End If
End If
End If
End If
Application.EnableEvents = True
Exitsub:
Application.EnableEvents = True
End Sub

[bebo021999]

What range is "multiple cells"?
If C2 and D2:
using:

If Target.Address = "$C$2" Or If Target.Address = "$D$2" Then  

If whole column C (column index = 3):
using:

If Target.Column = 3 Then  

or
If specific range(ex: C2:D100):
using:

If Not Intersect(Target, range("C2:D100")) is nothing then  

[angelod]

I receive an error when i'm trying first option
Capture.PNG

[bebo021999]

Opp, sorry, should be:

If Target.Address = "$C$2" Or Target.Address = "$D$2" Then