The MT-Medic application allows you to do global administration tasks on your MovableType installation.

Configuration

Lists all configuration entries of your MovableType installation.
Used for general troubleshooting.

Plugins

Lists all the plugins that you have installed as well as the template tags and filters that each adds to MovableType. It also shows any errors that the plugins may have.
Used when you have problems with a plugin or when you want to see which plugins and tags you have available.

Filters

Lets you try out the effects of different global tag attribute and text formatting filters that are installed.
Used when you need to see how a filter affects the text that it renders.

Authors

Allows you to change the contact information (name, nickname, email, etc.) and blog creation and log viewing privileges, as well as to reset the password of any MovableType author.
Used when a user has forgotten (and can't retrieve) their password and for general user administration.

Blogs

Gives you an overview of blogs and how many authors each has.

Permissions

View and change any author permissions on any blog in the system.
Used for changing permissions on blogs that have been created by other users.