Unless I’m misunderstanding you, this is already possible. For example, if you just want observations at the genus level, choose Filters-> Rank → Low = genus. Then you get this search: https://www.inaturalist.org/observations?lrank=genus&place_id=any&subview=grid&taxon_id=466517. More search tips here: https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki/63
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