Cisco ISE 3.0 - Guest Portal: person being visited drop down

[mi980]

Hi, I am trying to configure self registered guest portal on Cisco ISE version 3.0. I would like to get all the domain users name under "Person being visited" rather than Email.

Guest should be able to start typing the name of the person being visited and get the auto suggestion from the drop down to select.

Tried the script from https://community.cisco.com/t5/security-knowledge-base/ise-guest-self-registration-choose-from-a-sponsor-list/ta-p/3636453. But it does not seem to work in version 3.0 when I paste it in Optional Content 2.

I have already enabled Portal Customization with HTML and JavaScript.

Any advice on how to achieve it? Thanks in advance

[ahollifield]

Not sure on this specific ask but just as FYI: https://www.cisco.com/c/en/us/products/collateral/security/identity-services-engine/identity-service-engine-software-3-0.html