Hiding multiple rows based on different target values

Hi all,

I have a worksheet within which the user selects whether an event is either; On-site (Bridport), Customer (UK) or Customer (International) and based on their choice different rows are hidden. There are 6 different events all with the 3 options and therefore different rows to hide.

I have the below code that works well for the first event, however, I'm having problems trying to extend it to the multiple events and options. Can anyone help?

The Target Cells are: B3, B17, B30, B44, B57, B70

Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Cells.CountLarge > 1 Or IsEmpty(Target) Then Exit Sub
If Target.Address = Range("B3").Address Then
With ActiveSheet
Select Case Target.Value
Case "On-site (Bridport)"
    .Rows.Hidden = False
    Rows("6:11").Hidden = True
Case "Customer (UK)"
    .Rows.Hidden = False
    Rows("6:8").Hidden = True
    
Case "Customer (International)"
.Rows.Hidden = False

Case "-"
.Rows.Hidden = False
    
'add more here as needed
End Select
End With
End If

End Sub