The short answer is no, however if the content controls are titled and/or tagged you can loop through the content controls and process only those that have a particular title/tag.
You can title/tag the controls if necessary with
http://www.gmayor.com/ExtractDataFromForms.htm
If you title the similar fields with a common name e.g. Table1_Name Table2_Name then you can use the following to modify all the fields named like *Table e.g.
Code:
Option Explicit
Sub Macro2()
Dim oRng As Range
Dim oCC As ContentControl
Dim lngCC As Long
Dim iLst As Integer
Dim strListItem As String
Dim strTitle As String
Const strList As String = "C:\path\ccList.txt"
Dim iFile As Integer: iFile = FreeFile
Set oRng = ActiveDocument.Range
For lngCC = 1 To oRng.ContentControls.Count
Set oCC = oRng.ContentControls(lngCC)
strTitle = oCC.Title
Debug.Print strTitle
If strTitle Like "*Name" Then
If oCC.Type = wdContentControlComboBox Or _
oCC.Type = wdContentControlDropdownList Then
'leave the prompt text and delete the rest
For iLst = oCC.DropdownListEntries.Count To 2 Step -1
oCC.DropdownListEntries(iLst).Delete
Next iLst
End If
'add the new list from a text file
Open strList For Input As #iFile
Do Until EOF(1)
Line Input #1, strListItem
oCC.DropdownListEntries.Add strListItem
Loop
Close #iFile
End If
Next lngCC
lbl_Exit:
Set oRng = Nothing
Set oCC = Nothing
Exit Sub
End Sub