How to call external URL from BI Workspace

Hi All,
I am creating a BI Workspace (BO 4.2). I have multiple tabs on this workspace. Is there any way when I clicked tab name, a external URL (example separate window open? I know we can use Web or Text module/template for this feature. But here I do not want to use any default modules/templates. I just want to define a URL on tab name and when I clicked that tab a separate window open.
Appreciate your help on it.

Philip (BOB member since 2006-03-02)