Also it should be possible to see wich role/capabilities i have at any point in the system.
Also there should be something like a role-debug-mode, administrated by the administrator, which allows me, if switched on, to see all my capabilities and roles and from which role wich capabilitie is inheritet and so on.
Yes - you can in Moodle 2.0 You can check the permissions of someone to see what they are and what they are not allowed to do - and you can also run a Capability Report to see which roles are allowed (or have been overriden to be allowed) to do certain activities.
Roles and permissions
Roles improvements in Moodle 2.0 - your opinions wanted
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