Lightroom Book Module hyperlinks

Does anyone know a way to add active hyperlinks to a text page in Book Module? In my stills photobooks I want to provide viewers a way to link out to some YouTube videos relating to the same subject as a particular photography eBook I am doing. I can add text of the links on a page but to date but have failed to find a way to make them live, active hyperlinks such as one could do in MS Word, etc. When I past a link onto a Book module page they revert to somple ascii text, forcing people to copy/paste to view the videos. 

Thanks