Linking to a Heading in another MS Word document

Hi folks, skip down to "Example 4" below if you want the TL;DR.

Before you post a possible solution, please check it's none of Examples 1 through 3, as these have been reviewed in detail previously and are not viable solutions to the following Problem Statement.

 

I have a suite of MS Word documents that relate to other MS Word documents. When linking from one to another, I'd like to scroll the user to the relevant Heading in the second document, rather than put them in at the top of what are often long documents, with dozens of structured Headings in styles Heading 1 through Heading 4.

 

I know how to link from the first document to a Bookmark in the second document, but I can't seem to target an instance of a Heading in the second document, meaning I would have to manually create a bookmark for each Heading in the second document, which becomes an administrative nightmare when you have dozens or hundreds of Headings, all of which would need their own duplicating Bookmark.

 

I've tried heaps already, and am proficient in examples 1 through 3 below. I'm explicitly looking for instructions on example 4 below: 

 

Example 1: Within "Document A", create a hyperlink to scroll to a "Heading" also within "Document A".
#1 is easy and working as per instructions and screenshot below

Example 2: Within "Document A", create a hyperlink to open "Document B".
#2 is also easy, and working as per instructions and screenshot below.

Example 3: Within "Document A", create a hyperlink to open "Document B" to pre-scrolled down to a specific MS Word "Bookmark" (which I've previously manually created within "Document B" using "Insert > Bookmark" to the selected text).
#3 is also easy and working and per instructions and screenshot below.

Example 4: Within "Document A", create a hyperlink to open "Document B" to pre-scrolled down to a specific MS Word "Heading 1" (which I've previously manually created within "Document B" using "Apply Style 'Heading 1' to the selected text").

Has anyone had any success with reducing the manual maintenance burden of maintaining a suite of "Bookmarks" within a document by successfully targeting "Headings" when linking into a different MS Word document?

 

Thanks in advance 🙂

L