[Plugin: NextGEN Gallery] Thumbnails that Slide In

I am using NextGen Gallery on a client’s site, and love it. We have 4 thumbnail images displayed across the page, and then click the next page arrow to bring up the next 4 images, and so on.

What I’m wondering is – can the next 4 thumbnail images “slide in” instead of just appearing?

We DON’T want to use the slideshow function, as we want to see 4 images displayed across the page at all times.

Here’s the URL: http://averyswartz.com/wildthyme2/testphotopage/

Help please!