: A small, non-intrusive compass in the corner that, when clicked, shows where Jaya is located in relation to the Grand Line and the knock-up stream's predicted path.
: When Norland is mentioned, a "Journal" icon appears. Clicking it shows a brief, spoiler-free summary of his legend as it's known in the North Blue vs. the reality the Straw Hats are discovering.
This interactive feature would allow viewers to dive deeper into the world-building without leaving the episode:
Since your file is (the Italian dub), a great feature for a video player or hosting platform would be a "Logue-to-Lore" Context Toggle .