Hi, 

I have a question about PluggableListMorphOfMany and I hope someone of
you can help me.

I found on the Class comments that PluggableListMorphOfMany require the
model to implement #listSelectionAt: and #listSelectionAt:put:. 

My question is, why these selectors are hardcoded and don't use ones
passed on creation? 

I looked at the code and the only place where one of these methods are
called is on: 

PluggableListMorphOfMany>>itemSelectedAmongMultiple: index
itemSelectedAmongMultiple: index
	^model listSelectionAt: index

I would rather propose: 
itemSelectedAmongMultiple: index
	^getSelectionListSelector 
		ifNotNil: [model perform: getSelectionListSelector with:
index]
		ifNil: [model listSelectionAt: index]

This would be ok? It seemed odd to me that everywhere in the class were
used "model perform: getSelectionListSelector with: index", and only on
that method used the a hardcoded listSelectionAt: call.

Thanks

Regards,
Hernán