No - Autosort works already (why would be there otherwise the option in the setting??). All you need to do is to activate it either with empty inventory or dump all your items to retainers after activating it and then take the items back. I does sort items for me (put different items types in dfifferent pages of inventory) but it's not really that efficient especially once you fill-up your directory. With the 2.1 patch should come more "advace" sorting option.