The main page for collection projects isn’t customizable. There isn’t a way add a taxonomic view to them either.
See affiliated feature request: Implement “taxonomic view” for observations search page
Fixed workaround link: https://www.inaturalist.org/observations/taxa?taxon_ids=47115,47534,85493,47490,47178,122158,48220,50863,57774&place_id=7690&user_ids=brewin_smsg,smsg,stefficarter&quality_grade=needs_id,research_grade