[Newbies] Ruby macros

I miss my Ruby macros (1st day in Squeak and I love it ... dislike the camelCase tho'). Would this be the correct way to go about it?

RUBY:

class Class def has_many symbol ...generate getter/setter with Collection.new end end

class House has_many :doors # just remove this line to "Undo" ! end

SQUEAK:

!Class methodsFor: 'macros' stamp: 'xy 7/1/2006 18:34'! has_many: aSymbol ... generate getter/setter with (Collection new) ... record meta-data fact on the class itself ! !

undo_has_many: aSymbol ... check meta-data on the class ... remove getter/setter ! !

Any starting hints for: (a) what would I put in the "...." :-) (b) how to put these onto convenient popup menus? (c) pointers to specific freely available stuff like these?

Many thanks.