How to set search fields for a child doctype

So I have a doctype with the name Vendor Catalog and I have a child doctype with the name Catalog Items. now there’s a third doctype with the name of Quotations in which I have one more child table and in that child table I have one field link to Catalog Items child doctype.

when I click on that field it shows names of the child table records in the dropdown list but I want to show some other field text in that search dropdown, as you know there’s no way I can set search fields for a child doctype as we do for regular doctypes in a frappe.

so I wanna ask is there any other way that I can achieve this sort of functionality with frappe using something like client script or server script?