Add, update and remove item to PagingDataAdapter or to another Adapter

How to add, update and remove item to PagingDataAdapter or how is it possible to implement this when working with pagination?

Start by reading the codelab's existing PagingDataAdapter usage and the PagingDataAdapter pagination guidance referenced by the issue. Done means the codelab or its documentation clearly explains how to add, update, and remove items while working with pagination.

Written by the indexing model from the issue text.