Ok, my ultimate goal is to add a print option to the links that popup using the Lightbox option within the Extra Field Link.

There's two ways to go about this:

1) Find a way to add a new option to the way Extra Field Links are displayed (For example, instead of New Window, Same Window, Lightbox Popup, Classic Javascript popup, it would add Rokbox, other Lightbox plugins that include print options, etc as type options)

2) Find a way to modify the media/system/js/modal.js (which I assume K2 refers to when using the lightbox option, if I'm wrong please by all means correct me) to include a print button with functionality.

I understand option 1 is a K2/Joomla question (which probably would include modifying PHP) whereas option 2 is a Javascript question. I'm a novice at PHP and an amature at Javascript, so any copy-and-paste solutions (as opposed to saying "Use print()") would be very helpful.

Here's a mock-up of what I'm going for

Any suggestions? Should I be asking somewhere else? Maybe even a third possible solution that would achieve the same ends?