I think the reason why the AI is only building stacks of peltasts and other light units is, that it rarely builds the military building chain that allows the recriutment of elite units. Is it possible to edit the building bias of the AI so that e.g. macedon builds at least one of these buildings in every province it owns?

Following to that aspect, how can I drastically increase the bias of the AI to build such Elite units instead of light ones if possible?