When I can open a viewer on Morph instead of Player, should I then be able to mix and match tiles with Player-derived tiles?
As far as I know what you see is part of a extension to the current etoy system and partly implemented brigde between the etoy and Smalltalk environment. I'm not sure which state this system is in and there could be some rough edges, but I highly recommend you to try it out and report any progress back to this list. Not that all problems you will encounter are easy to solve but we can all learn from this, which is good.
I haven't had much luck in getting tiles from viewer on Morph to work. For example (if in viewer script):
EllipseMorph borderColor: Color white (all as a tile)
does nothing. When I exit out to the enclosing project, I receive an error message that says
Message notUnderstood: EllipseMorph >> prepareToBeRunning
Of course because I'm a fairly absolute beginner, there's always the possibility that I've just missed something obvious .... :)
Karl