3D FlipBook - Just purchased the pro version and its very nice. My client wants to remove the upper and lower spaced on internal page. Is

Just purchased the pro version and its very nice.

My client wants to remove the upper and lower spaced on internal page. Is there a way to force the cover/back image to be the same height as the internal pages. so everything is tight and neat. Source: http://robinkencelgroup.com/luxe-living-magazine/

Thank you very much