There is no built-in federated search feature in DocSearch front-end, but you can build one using Autocomplete or any other front-end tool we offer.
The free DocSearch plan, doesn't include technical web support from the Support team. For further assistance, you can post your question on the Algolia Community Forum or Discord. For front-end issues, you can raise the issue directly on GitHub. In addition, you can review our DocSearch Documentation and FAQ.