Ideally a form with content controls should be protected as readonly with editors added to the content controls, but you can protect it for forms. The code for both is included
Code:
Option Explicit
Const sPassword As String = "password"
Private oCC As ContentControl
Private oTable As Table
Private oRng As Range
Private Sub CommandButton1_Click()
If Not ActiveDocument.ProtectionType = wdNoProtection Then
ActiveDocument.Unprotect sPassword
End If
Set oTable = ActiveDocument.Tables(3)
For Each oCC In oTable.Range.ContentControls
oCC.LockContentControl = False
Next oCC
oTable.Rows.Last.Range.Copy
Set oRng = oTable.Range
oRng.Collapse 0
oRng.Paste
oRng.ContentControls(1).DropdownListEntries.Item(1).Select
For Each oCC In ActiveDocument.Range.ContentControls
oCC.LockContentControl = True
' oCC.Range.Editors.Add (wdEditorEveryone)
Next oCC
'ActiveDocument.Protect wdAllowOnlyReading, , sPassword
ActiveDocument.Protect wdAllowOnlyFormFields, , sPassword
Set oCC = Nothing
Set oTable = Nothing
Set oRng = Nothing
End Sub
Private Sub CommandButton2_Click()
If Not ActiveDocument.ProtectionType = wdNoProtection Then
ActiveDocument.Unprotect sPassword
End If
Set oTable = ActiveDocument.Tables(3)
For Each oCC In oTable.Range.ContentControls
oCC.LockContentControl = False
Next oCC
oTable.Rows.Last.Delete
For Each oCC In ActiveDocument.Range.ContentControls
oCC.LockContentControl = True
'oCC.Range.Editors.Add (wdEditorEveryone)
Next oCC
ActiveDocument.Protect wdAllowOnlyFormFields, , sPassword
'ActiveDocument.Protect wdAllowOnlyReading, , sPassword
Set oCC = Nothing
Set oTable = Nothing
End Sub