How to fetch multiple rows based on one row in erpnext

In Quotation :-In item table:------I have created a now column as “Bundled or child”.
so If any product is bundled then i want that automatically related fields to that bundled product and their respective price should get fetch below that item name.

if the link column is called item
in the options of the other fields you must put the following

I am talking about rows. For e.g. CCTV Package includes(Cables, cameras and monitor). so these items should get fetched in below row automatically when i select CCTV Package.