We can set the reset value of an AsciiCount when it is required to reset. First, you need to click instance option button to add an instance method. In the counting protocol of AsciiCount class, add a method reset

reset
        "Reset myself ."

        | inValue |
        inValue := DialogView request: 'Reset to what?'.

        self value: (inValue first).

In this method, DialogView is a class used to input a String via a dialog box. Then asNumber is a method of String to convert it into a number.

Now, do Count asciiCountDemo in Workspace. When you are asked for the reset value, input a string (only the first character will be used for the resetvalue).