change no. of columns for 1 category

-- url of the page with the problem -- : newroomstyle.co.uk/index.php/sale-clearance/114-leo
-- HikaShop version -- : 2.6.1
-- Joomla version -- : 3.4.8
-- PHP version -- : 5.4.45
-- Browser(s) name and version -- : IE11

HI,
I'm trying to set up the following page

newroomstyle.co.uk/index.php/sale-clearance/114-leo

to show 4 columns but cant figure out where to change this.. I only require THIS page to be 4 columns.
the page is a list of products of a category "Leo"
?

its ok, I figured it out!

Thanks