How to tell Which SoundSet come in which soundpack or megapack?


I’d like to get Cyberpunk Disco. I was going to get it separately, but noticed it is included in the Sci-Fi Environment soundpack. Heck, I might as well splurge and get the larger pack! Neat!

Which got me thinking… the Sewer is also on my buy list. How can I tell if Sewer is included in a larger soundpack or megapack?