Hi there, 

Thanks for reaching out to us!

Unfortunately, we currently don't have a way to add this feature to the Ajax search. Adding this would require some extensive customization which I'm afraid we are not able to offer due to support scope limitations. 

However, we are partnered with a trusted provider of expert-level Salient customization. If you are interested in initiating a project, we recommend referring to our guide at the following link: https://themenectar.com/salient/customization/

We appreciate your understanding.

Best Regards,