Range.ContentControls (Word)
Returns a ContentControls collection that represents the content controls contained within a range.
Dim objCC As ContentControl
Dim objRange as Range
Set objRange = ActiveDocument.Range(200, 200)
Set objCC = objRange.ContentControls.Add(wdContentControlDropdownList)
'List entries
objCC.DropdownListEntries.Add "Cat"
objCC.DropdownListEntries.Add "Dog"
objCC.DropdownListEntries.Add "Horse"
objCC.DropdownListEntries.Add "Monkey"
objCC.DropdownListEntries.Add "Snake"
objCC.DropdownListEntries.Add "Other"