Magritte3 description selection

Hi,

        i have a class Account with some descriptions.
       
        Now based on my application state   i'm interested to select  and display a sub collections of the relative descriptions.

        In the Magritte 2.0 i redefine the instance description method ( in the example i implemented it with descriptionFor: )

                 and at this time i select the relative class description and return it asContainer.

        Example:

        aMember := Account new.

        cllDsc:=  aMember descriptionFor: #( #update).
                       
        rsl:= self call: (( cllDsc asComponentOn: aMember  )
                                                        addValidatedForm ;
                                                        addMessage: 'Aggiornamento item ' , aMember label  ;
                                                                yourself).



Now i work to port the code to Magritte 3.

        My question is :

                 what is the best solutions to create dynamic selection of the descriptions relative to one instance ?

        I'm new to Magritte3 and i don't know the engine.


        Can anyone give me some guidance?

        Thanks,

                Dario
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