[Theme: Elegant Grunge] Template 2 sidebars, one left and right

At the moment there exists four templates:

Is it possible to add a sidbar on the left and right?
– No Sidebar
– One Sidebar right
– One Sidebar left
– Two Sidebars right

Is it possible to add a template for
– One Sidebar on the left and one on the right?

br
chrisonline

http://wordpress.org/extend/themes/elegant-grunge/