I'm not sure what you mean by "use keystrokes to show the background functions." You may mean "Reveal codes." Word has an equivalent.
Word's Reveal Formatting Codes
Word for Wordperfect Users
In the other thread, Word MVP Stefan Blom posted a macro that converts blank fields (which are the source of your problem) into
MacroButton fields. That works on your form.
Code:
Sub BlankFieldCodeRepair()
' Stefan Blom, MVP, June 2021
' https://answers.microsoft.com/en-us/msoffice/forum/all/in-word-when-the-bookmarks-are-visible-the-f11-key/b38a5817-98dd-4407-9761-f53fa37555b6
' Changes blank field to MacroButton prompt
'
Dim f As Field
For Each f In ActiveDocument.Fields
If f.Type = wdFieldEmpty Then
f.Code.Text = "MACROBUTTON NoMacro Type here"
End If
Next f
End Sub
Instructions for Installing Macros from Forums or Websites by Graham Mayor, MVP
By the way, I do not know what happened to the attachments but I've re-attached them.