creating a customized system view for opportunity entity

Hi everyone,

I am fresher and just started learning dynamics 365 CRM and business central. 

I got a task to create a system view in dynamics CRM for opportunity entity. The task is to display the fields within the opportunity record.

• Sales team ( Just one role from sales team for example Sales professional ) 
• Extended Amount ( This field is in product line items)
• Est. Delivery Date  ( This field is in product line items)

I am not sure how can I extract and display the particular field in view, I can't find any relationship in Add columns. I appreciate for any kind of help.

Thankyou in advance 

Regards