WIX Content Manager Project

Hello, we need our WIX content manager databases to link to secure pages and allow clients to manage their own data. We are a Beer Festival and have exhibitors that exhibit at the festival. This content then needs to be presented and made available to our patrons. We have a database of their products and would like them to be able to manage their own products. They also have their own staff and we would like them to be able to manage their own staff lists and upload staff certification RSA certificates