Unsubscribe

Hello,
I installed Profile Builder on a website (still developing) and it works very well. Only one thing: my dashboard is visible only for the administrator and hidden for all other users – using a plugin for this -, and I would like to keep this setting on. How can they unsubscribe by themselves without access to the dashboard? Maybe – it can be so – I didn’t notice some of the options and settings of Profile Builder?

https://www.ads-software.com/plugins/profile-builder/