I'm sorry for the confusion, but it seems like you're doing it wrong nostr:npub1ak68qfcjj7k95c0jwleu69x72nr8adwv6g80pkwl9xlps6zmkqzqrxy8fx
To decide what's included on the site you use "Content filters" - you should specify your hashtags there. Only posts with those hashtags will be pulled into the site. All of them will be included on the homepage.
But some people want to be even more selective even more with their homepage, i.e. "posts with #bitcoin and #nostr should be somewhere on my site, but homepage should only show #nostr". Then you go to "Homepage settings" and choose #nostr there - posts with #bitcoin will still be visible on the site, and you can i.e. add /tag/bitcoin to navigation to direct people there.
Does this make sense?