Add Zooming to Joomla plugin lightbox(repost)

Joomla website: Using Joomla? Portfolio? component (<[login to view URL]>) and I need to add a zooming function to the lightbox when viewing one item in the portfolio: Current lightbox (click one carpet): <[login to view URL]> Desired zooming function on lightbox (click one promotion) [[login to view URL]][1]? (currently using the simple SIGPLUS IMAGE GALLERY PLUS) => on second lightbox, there is an extra zooming button that enables an extra zooming stage. I will need the extra zooming button on the top left corner of the lightbox instead of top right.