Automatically add an alias when the 'ok' button is selected

When you add a first alias for an At or an OC, you have either to hit the 'enter' key or to click on 'add'. Usually, you just type the new alias, and hit the 'OK' button, which get out the popup without adding the typed alias, which is irritating... It would be much better if the OK button validate the addition, and the 'cancel' button just discard the alias.