Customizing Knowledge Base article types

When using Jira Service Management with Confluence, you can only create articles using the built-in "Troubleshooting" and "How-to" blueprints from Confluence. It'd be great to give customers the ability to control the templates more - for example, selecting which templates are shown, or selecting which global blueprints to use (not just the ones in the linked space).

Having this configuration on a per-service desk basis would also be helpful, and would give Agents more control over knowledge curation. As a workaround, it's possible to create articles using different Blueprints from the Sidebar - so having this on the ticket would make life easier for Agents.