Portfolio Filter sorting

I have set up a portfolio page (http://figureground-architects.com/projects/) based on the “Portfolio simple – 4 columns” template. Can you please advise how I can arrange the filter section of this template so that the categories are sorted in my prefered way. For example:

Featured | All | Residential | Education | Masterplanning & Urban Design | Commercial

At the moment they are either sorted randomly using php code:

array_unique($portfolio_filters);

or alphabeticlly using code:

asort($portfolio_filters);

Can you please send me the code that sorts them in order of appearance within the Portfolio Categories section of the WP-admin area.

Kind Regards,

Thomas