How can I pass a multiple-term vocabulary as context so that visibility rules can pick up more than ONLY the top term?

Hopefully this will make sense.

I've set up a vocabulary called 'widgets' which allows the node author to determine which widgets will be displayed in the sidebar (which is a panel) for a node they create.

The problem is that only the 'top term' is passed through as a context, which means that only one widget will activate on a given page at a time, whichever one is the "top term" for that particular node that is being rendered.

Is there any way to pass "Terms from node" instead of "term from node" as a context?

This has been driving me crazy. I'm using panels. 3.3 and ctools 1.3 for drupal 6.

Any help would be greatly appreciated. I'm really liking panels, but I just can't seem to figure out how to use some of its features...