There is currently a field on People called Homepage. It determines what happens when you click the big SHOTGUN button in the upper left corner. Right now, you can only give it four options: My Tasks, Inbox, Custome Home, or Welcome to Shotgun. It would be great if you could customize this field to use any other page on Shotgun.
This allows the Shotgun admins to set up home pages separately for Artists, Producers, Department Leads, and whoever else might need a more customized homepage without having a bunch of tabs on the Custom Home page. Additionally, in our case, we have projects here which vary wildly in how they are implemented, and having only one option for the Homepage can start causing conflicts between productions.