It would be helpful if the OK button on the QA Regular Expressions window saved the changes.
I mean (don't want to be rude, but ) what's the point of having an OK and Cancel button, if the OK button doesn't save the changes?
Currently, you have to use the Action pull-down button and select Update every time you make a change, and this is not really intuitive.
Or, it would be helpful, when a change is made and the user clicks OK without clicking Update to show a dialog box saying "Do you want to save the changes?"