Navigate to any heading in the PUBLISHED version. When you hover over it, some grey icons appear to the right. Click the third one.
You should see the link appear as a small circle with a question mark within it. Clicking this should launch the embedded help popup, and open it to the section where you generated the link.
Ensure your page has the following code pasted near the bottom, before the closing 'body' tag.
Copy this code and place it where you want the help icon to appear in your page.
Your help link will appear as the icon below. Click it to verify how the help content will look.
Place a QR code on your product or machinery to let a user
easily retrieve the user guide documentation for it.
Right-click and 'copy'