"All roles" designer is one of the development tools. It allows changing and analyzing the composition of rights for several of all the roles existing in the application solution.
This designer is convenient to use in those cases when it is required to enable or disable at the same time one right for all the roles. Or when it is necessary to visually compare or change several roles at once.
If for some right it is required to enable or disable its permission in all the roles, it is enough to enable or disable the permission flag.