When setting up groups for access to various reports in manex, aspmnx RoleSystemTags connect the group roles with the report tags.

If the following statement is run, all tags connected with each role will be shown:  

select r.rolename,t.tagname from aspnet_roles r inner join aspmnx_RoleSystemTags rt on r.roleId = rt.fkroleid inner join mnxsystemtags t on rt.fkstagid = t.stagid