[uzgewhha] UI log

The nice thing about command-line interaction is it automatically gives you a log of your actions and the subsequent effects of your actions.  You can see, and later review, what you did and the effects.  This is useful for learning and understanding a system.  It is also useful for teaching: you can easily publish, "this is how I solved the problem: ..." by publishing the log.

(Previously, modifying an editor to enhance this effect.)

Can a GUI be enhanced to provide these features?