[Moose-dev] Metamodels and MooseModel

hello I created my own metamodel to import my own elements in Moose. Actually, I want to analyse chickens and eggs with Moose. So,I wrote classes Chicken and Egg which both extend MooseElement. Then, I extended MooseModel in my package and I implemented allChickens and allEggs methods in the class MooseModel. Finally, I imported in Moose my instances of Chicken and Egg and I could see them into Moose, so I was very happy :) Infortunatly, when I decided to unload my model(and consequently the methods allChickens and allEggs in MooseModel), Moose didn't work anymore! To solve it, I ran System>> reinitializeDefaultSystem. Nervertheless, it may be painful and tiresome to reinitialize the system whenever a metamodel is removed. Is there an other solution to fix this problem? Or is there possible to reinitialize it automatically at Moose launch. Thank you for your help Sara