I think it would be helpful to have the ability to set Permissions/Restrictions in "Roles & Permissions" on a global scale. For example, if I want everyone in our environment restricted from seeing a certain category with the exception of Administrators, I would apply a Global Restriction. Or if possible, create a restriction that then provides me a dropdown of the roles I want to apply the restriction to, so that I don't need to add the restriction to each role one by one, especially when we have an environment that has a considerable amount of roles.