This is documentation about a configuration directive, which can be placed within Movable Type’s core configuration file,
mt-config.cgi, to customize the behavior of the system.
DefaultAssignments Configuration Directive is used to programmatically set default default roles for a given blog for new users. That is, when a new user registers they can be automatically granted permission to work with a specific blog.
The DefaultAssignments directive takes a comma separated argument. Two values must be supplied: the role ID and the blog ID. For example, the following will assign the role with an ID of “2” to the blog with an ID of “5”:
Multiple role/blog combinations can be set at once: