I've been asked on email support how to use an external source to display results, in this specific instance the index our Zendesk extension creates.
Basically, you'll have to:
If you plan to add new files to match those, you'll also need to add them inside the Algolia block in the layouts file you installed Algolia into (e.g. layouts/theme.liquid)
the function autocompleteSection
the main algolia.autocomplete object
maybe the main template with parameter to add your new source too:
the list of sources:
the autocomplete:selected event which handles the redirection to the page when a result is selected
Modify the main template of the autocomplete menu to include this new section in snippets/algolia_autocomplete.hogan.liquid
Finally, change the CSS to match your needs in snippets/algolia_autocomplete.css.hogan.liquid
This seems like a lot, but all of those are fairly small files to make it clearer to find what you want.If you're stuck anywhere, please create a new post with a shopify tag, I'd be happy to help!