Admin Help Link Instead of Content

Hi,

I'm wondering if there's any easy way I can hack the code of this plugin to modify it slightly. Here's what I'm after:

The current behavior is that the user clicks the "Help" tab, and the help area slides out as usual...but with new content inserted.

However, instead I'd like for the "Help" tab to simply launch a helpdesk or the Zendesk Dropbox. The Dropbox example would be the following code:

<a href="#" onclick="Zenbox.show(); return false;">My ZenBox Link</a>

So how could I make the tab simply activate a link instead of sliding out the help content area?

I don't mind tweaking the plugin code.

Thanks,

Mark