Improving User Experience for Hiiv Preferences Center

Question for the Hiiv. I have a preferences center set up, but I find the logic behind it a bit confusing for readers. In other tools, preference centers I've set up (Mailchimp, Sailthru, Campaign Monitor) I was able to set it up in such a way that people were opted in on subscribe, and if they wanted to opt out they'd click a preference center link and opt out of that specific email. I can't see a way to easily do that in Beehiiv since there's no obvious way for me to auto-opt new subscribers into all the preferences, and no way I can see to update all current subscribers. The only option I see is to let people opt out by toggling on or checking a box next to each preference. Can anyone advise me on a way to make this more user friendly and less confusing?