The following example uses the DropDown method to display the list in a ComboBox. The user can display the list of a ComboBox by clicking the CommandButton.
To use this example, copy this sample code to the Script Editor of a form. To run the code you need to open the form so the Open event will activate. Make sure that the form contains:
Dim ComboBox1
Sub CommandButton1_Click()
ComboBox1.DropDown
End Sub
Sub Item_Open()
Set ComboBox1 = Item.GetInspector.ModifiedFormPages.Item("P.2").Controls("ComboBox1")
ComboBox1.AddItem "Turkey"
ComboBox1.AddItem "Chicken"
ComboBox1.AddItem "Duck"
ComboBox1.AddItem "Goose"
ComboBox1.AddItem "Grouse"
End Sub