I use grid.reconfigure(ds, cm) to change my grid, and it works beautifully! However, I would like to be able to set the autoExpandColumn as well, as it is now, I have to work around that, setting it before the object is instantiated, it's quite messy. What I would like is to be able to set it as a config parameter in the columnModel *or* be able to supply the reconfigure() method with a this parameter.