First of all, I'm greatfull that a way to dynamically sort and hide/show columns via the “columnChooser” method exists.

However, it seems a bit awkward and incomplete in it's functionality in the “apply_perm” option function within the “columnChooser” method.

1. if you don't use the “done” option, the method remaps the columns using the default jqgrid remapColumns method attached to the “done” option in the “columnChooser” method