Thank you so much for your fast response.
When I use the shortcode (with WP 3.4.1) in the admin panel, I get the following error message:
Fatal error: Call to undefined function mb_strtoupper() in …/wp-content/plugins/multi-column-tag-map/mctagmap.php on line 150
That’s why I thought I wasn’t understanding how to use the shortcode (which I’ve been using for a long time). I’m using the latest version of the plugin.
Is there something else that i can do to enable the plugin? Thanks!