Allow user to differentiate abstract and discussion presentation in a "full help"-enabled SAP

This feature request builds on the notion of a full help user-driven option.

Under such a feature, this request would allow the developer to specify how the abstract and discussion are presented, allowing either or both to be presented in full-help only or in both.

The goal is to provide a succinct default help and allow a deeper dive in full-help, controlling which items of the configuration are presented.

Start by locating the existing full-help user-driven option and the code that presents abstract and discussion text. Determine how developers would specify whether each item appears in succinct help, full help, or both, and define completion criteria around those presentation combinations.

Written by the indexing model from the issue text.