The new Global Dossier is nice, but you still have to spend time control+F-ing to verify all the references have been cited.
This tool will automatically pull the Global Dossier and search the IDS's for every single reference (and even the specification), saving you hours - or at least making it more chill.
You can jump straight to cited references (they're highlighted too) so you can easily verify them.
Easily search for alternative publications. Just paste in the alt pubs from Espacenet.
Disclaimer: the tool isn't perfect - you need to verify (particularly NPL). It DOES make it easy and fast to verify.