Product summary block in sales quote TI screen

Hi All

I have a requirement to provide a Item summary/details block on selection of any line item in the TI screen of the product.

I created an EC to add to the TI screen.

I tried using the Activity tab in Opportunity for reference but there is no outport in the standard TI screen of sales quote to which the custom Embedded component could be bound.

Example from opportunity

Request you to suggest me on how to proceed here.