Thanks Jan.
But you could actually select more than one optionbox if you "groupname" them in their properties, and place them in a frame.
I am able to select multiple optionboxes. However, I want with one button, help the user to select all of them, instead of doing it one by one.
Private Sub CommandButton4_Click()
For Each ctrl In Me.Other.Controls
Select Case TypeName(ctrl)
Case "ComboBox"
ctrl.ListIndex = -1
Case "OptionButton", "CheckBox"
ctrl.Value = True
End Select
Next
End Sub