Let us say that you create a Morphic World and add a SimpleButtonMorph and a
TextMorph to it. How do you tell the SimpleButtonMorph to change the
TextMorph's text? How do you refer to another Morph in a particular Morph's actions?

When you create a Morph using the Morph palette, must you subclass the
instance of the Morph you have just created before modifying some of its code
(actions, etc.)?

Philippe de Rochambeau