This Drupal 6 module tutorial will show you how to create a block and allow users with a specified permission to select its output from predefined content options using a custom administration screen.

When Cornerstone Church started Live Streaming our services, we wanted a quick and easy way to switch the "Featured Series" block on our home page into a big button that linked to our live streaming page.

In order to allow users to switch this block without having access to Block administration, I wrote a quick little custom module that displays different contents in a block depending on a setting stored in the variables table. Users with the correct permission can navigate to admin/content/livetv and toggle between the two displays.