In version 3.7.7 I have the ability to pick Aggregated Interfaces in the Inventory Hierarchy view but in version 20.2 I can not.
The dashboard that was created before the upgrade says "Please edit this dashoard and choose a replacement view. Your recent upgrade has removed support for a view that originally existed here."
Release : 20.2
Component : IM Reporting / Admin / Configuration
There were no Aggregate Interface’s defined in NFA. So there was no option to select them for the context type and the chart gave an error. Once defined in NFA and they showed up CAPC and in the report and could be selected for context type.