Chamfer spacebar toggle

Is there a way to add the command, "Equal edge chamfer amount$", and "edge Chamfer option1" to one of the options that are toggled with using the spacebar during a chamfer (f)? As it is now, it is on and off feature for chamfer. It would be nice if it was an option that I could toggle through via the spacebar. (I apologize if this question is naive. and maybe it already exists?)

Try this
http://www.digitalfossils.com/Download/NVil-Dec-04-22.rar

You can use "Alt+Space" and "Caps-Lock" to toggle the two options.