Click on the gear icon from the page builder section and press Embed
This is where you can add, edit, or delete embed codes. Make sure you label them so you know what they're referencing to later.
Press Add Embed Code
Label the code and link it to the wanted page and it will then generate the code for you.
I went ahead and generated the ones avaliable at the moment.
<script type="text/javascript">app_id="5e722df948c92e0015ce7b14";distribution_key="dist_2";api_domain="knack.com";</script><script type="text/javascript" src="https://loader.knack.com/5e722df948c92e0015ce7b14/dist_2/knack.js"></script><div id="knack-dist_2">Loading...</div>
<script type="text/javascript">app_id="5e722df948c92e0015ce7b14";distribution_key="dist_3";api_domain="knack.com";</script><script type="text/javascript" src="https://loader.knack.com/5e722df948c92e0015ce7b14/dist_3/knack.js"></script><div id="knack-dist_3">Loading...</div>
<script type="text/javascript">app_id="5e722df948c92e0015ce7b14";distribution_key="dist_4";api_domain="knack.com";</script><script type="text/javascript" src="https://loader.knack.com/5e722df948c92e0015ce7b14/dist_4/knack.js"></script><div id="knack-dist_4">Loading...</div>
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'