[noob again]objects and properties and messages

[Mikey]

I believe devolution only lists properties that are editable, right? 
What about read-only properties?

Anyboty have any suggestions on how to figure out what messages a
particular class of object receives?  There are several types of
buttons, but some receive different messages from others.

-- 
On the first day, God created the heavens and the Earth
On the second day, God created the oceans.
On the third day, God put the animals on hold for a few hours,
   and did a little diving.
And God said, "This is good."