Block tab module allows you to display blocks in a region as tabbed contents (1 block content is visible at a time). Block titles are tabs, and block contents are the content.
- Enable block_tab module
- Visit the admin setting page to set, which regions should be tabbified: /admin/settings/block_tab
I developed this module at Pronovix, contact us for Drupal consulting or development jobs: http://pronovix.com