In the old Dynamics Portals you could have a "Related" tab for the Entity/Table form. Now in Power Pages I can still see it when the form is being designed as shown in the image but it is not displayed in the page when the form is added.
I am confused, the related tab is not shown in Power Pages or even the old D365 Portals.
Do you mean the model-driven app or actual Portals?
@fw12345, Please try to follow the below steps to enable the "Related Tab" in the Entity Form of Power Pages.
Configure the Entity Form or Entity List component to include the related records.
For Entity Form:
For Entity List:
Save your changes and publish the portal.
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