In part 7 of the "Coffee on Couchbase" series, which focuses on building a NetBeans plugin for Couchbase, hosts Geertjan Wielenga and Eben Haber delve into various aspects of plugin development and the NetBeans platform. This episode discusses the design choices between using a modal window versus a status bar for bucket creation, the proper display of icons for newly created non-indexed buckets, and the renaming of the menu option to "Create Primary Index." The session also covers the "Explore from here" feature for nodes and buckets, default error handling by NetBeans for JSON document editing, and the ability to rename buckets within the NetBeans view. Additionally, there is a discussion on REST endpoint code generation using a bucket and a dialogue presentation for when JSON documents are edited or saved. The evolving code for this plugin can be found on GitHub, and the hosts encourage feedback and social media engagement using specific hashtags.