Each time an end-user types a character, the editor determines if the following placeholder can be filled automatically. If only a specific character can be inserted in this position, the editor automatically displays this character, and moves the caret to the right of this character.
When an end-user enters a character in an empty edit box for the first time, the editor automatically fills all the following placeholders with the default values. For placeholders that accept only numeric values, the '0' character is the default. For placeholders that accept word characters, the "a" character is the default.