JackFrostP4 said:
As an editor and enthusiast for animated OPs/EDs, I propose the option to find them without endless searching, perhaps in the "cheat sheet" section. You could type the source:(NCOP or NCED) in the search bar as an idea, thank you.
but the cheat sheet section already mentions that you can search with "source:xyz". you can use * as a wildcard. for example, source:*ncop*, source:*op*, source:*eyecatch* all would return valid results.