[Plugin: TheThe Layout Grid] Lost on How to Get This to Work

I am trying to get a grid going in the static content block at the bottom of this page: http://www.saltise.ca.

I am confused by the layout grid control panel. Do I just use it to make grid code that I paste elsewhere without worrying about saving the grids (for example if I wanted to make 5 different grids there is no way to save them other than to remove the code and paste it elsewhere, correct?).

Also, I don’t get the instruction to “append the code to your page URL.” Do you mean to add this to the permalink field on a wordpress page? It does not appear to work. My wordpress site is on an institutional server where I do not have access to the root directory. Where exactly do I go to append the code?

Thank you,

Nicole

http://wordpress.org/extend/plugins/thethe-layout-grid/