In the web-to-print platform of Aleyant Pressero, you can make multiple sites to cater to different groups of users. On the other hand, you can also set up a personalized experience and privileged pricing for key customers, while maintaining only one site.
In this video, you'll see an example of such a site, where the visible products are controlled by Site Groups, and you'll see how to set this up in the Pressero administration section.