Entity and event management.

Is it possible to write change events to [OnInserting][OnUpdate] data directly from the Data Modeller?
Usually we extend the classes generated by the Data Modeller with new methods with the class Helper but in this way I was unable to introduce events through the attributes. Is there a method to be able to do this?
Thank's in advance.

Yes, you can always use customization scripts to add any code you want to the generated unit of data modeler.

But of course, the more complex the code and the modifications you want to add, the more complex your script will be.

There are starter examples in the documentation, I thin you can start with the example that shows how to create methods in the class, and then you can improve from that and ask us for help if you get stuck.