This is a minor feature, however, helps in the long run to reduce the number of clicks. I am using Listly chrome addon for last one week and like it very much. It's actually one of the best among all list making add-ons. It's smart and does most of the part for me before I save it.
If it can also include an auto close after save it will be awesome and save a click.
Not sure how all other users are using it. If it's not possible can it be configurable so I can choose this as an option at the user level.