Some customers requested that they want to be able to restrict the usage of Backbone to some projects and not allow all of them by default. Backbone 3.1.1 introduced this behaviour by specifying some system properties (BAC-546) - this issue should transform the system properties into the UI.
This will be realized as a setting in our global administration settings UI. The setting will be a list of projects as it is the case with our system property. All projects where Backbone is allowed, will be listed there. If no project is listed, Backbone is allowed for all projects.
If a customer has also the system property set, the values of both lists will be merged.