How to show item structures in supply planning tables

Summary:

Hi,

In supply planning predefined tables such as "Material Plan", the product hierarchy is only one level and final products and their components are displayed in the same level.

This is sometimes confusing because you cannot see their item structures and guess where the demands of components are coming from.

So I want to see item structures in supply planning table just like the image I attached.

How can I achieve this? Do I have to add item categories?

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