This will be a plugin based functionality. Plugins should be able to define a list of "Cards". In spite of the screenshot, these cards should be displayed at the top of the client profile but below the message box.

Create a new table plugin_cards

• id INT(10) UNSIGNED AUTOINCREMENT primary key
• plugin_id INT(10) UNSIGNED NOT NULL
• level ENUM('client', 'staff') NOT NULL DEFAULT 'client'
• value_callback VARCHAR(255) NULL DEFAULT NULL
• label VARCHAR(255) NULL DEFAULT NULL
• html_callback VARCHAR(255) NULL DEFAULT NULL
• background_color VARCHAR(255) NULL DEFAULT NULL
• background_image VARCHAR(255) NULL DEFAULT NULL
• enabled TINYINT(1) NOT NULL DEFAULT '1'

The Plugin class should add a new method getCards() similar to getActions(). Each card should support the following fields:

• level: The level this card should be displayed on (client or staff) (optional, default client)
• value_callback: A method defined by the plugin class for calculating the value of the Card. This method should at the least receive a $client_id parameter.
• label: A string or language key appearing under the value as a label
• html_callback: overrides the value_callback and label fields allowing plugins to insert an custom html in their place through a callback method
• link: The link url to use for wrapping the card in an <a> (optional)
• background-color: The default background color for this card (optional)
• background-image: The path to the default background image for this card (optional)
• enabled: Whether this card appears on client profiles by default (optional, default true)

Info on these cards, like actions, should be stored in the database and updated automatically on upgrade.