You don't generate pathing grids, you manually create them for interiors, or exteriors. I think the generation proceedure the CS uses requires an assload of processing and memory to work, and it still kind of sucks. By manual creation and adjustment you have more control of things. Read the associated page on the Wiki, it is one of the more useful ones. yea, I was kinda having fun doing the grid by hand anyway. Learning more that way too. :)