Question about Cat and sub Cat

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I create a Cat, then i have 10 subcats.

Is there a way for me to display the subcat in 3 colums instead of row?

For example:

http://www.zmodified.com/gallery/

Under "350Z Members" Cat, i have 10 subcat (10 colors of the car) and they line up vertical and that will make me to scroll up and down to see other stuff. Can i make it something like this:

(https://coppermine-gallery.com/forum/proxy.php?request=http%3A%2F%2Fwww.zmodified.com%2Fgallery.jpg&hash=4358a8c765288cf66524db7cf10f3b96c9428295)

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anyone? please