Set a custom topic type for Federated Search content - Improve Search

While it is possible to rename the federated search section through Phrases, the content is not of any type, resulting in the filtering being inconsistent:
The search page filtering by topic type does not represent the full content, and selecting any content type results in eliminating all federated search results, since they have no type.

A fix could be making either:

• Making all content “Article type” so content is not eliminated unpredictably to end users (Meh)
• A dedicated type option for federated search content that can be renamed through phrases (Nice)
• The ability to create custom sub-types altogether that are assignable to content  at will (Oh yeah!)

We want to use the federated search to provide search results for our e-learning courses.for example and the fact they do not appear as a content type feels like a big misrepresentation.