The script you requested has been deleted, but here are some related scripts.
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Douki JS - Import Anime and Manga Lists from Anilist (see https://anilist.co/forum/thread/2654 for more info)
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Anime Website (Custom) Buttons Plus JS - A script that adds buttons on Anime Planet, MAL, Kitsu, Anilist and aniDB for searching various sites.
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Find The Correct Watch Order And All Related Entries+Live-Actions+Doramas + Copy Entry Title JS - See the franchise vorrect watch order and all entries. Easily check if an entry has Live-Action/Dorama adaptations, and copy the entry or all franchise entries title(s).
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MAL English Titles JS - Add English Titles to various MyAnimeList pages, whilst still displaying Japanese Titles