I ́m looking for a way to add an event into SugarCRM, for example, a Convention. Under that event have as a submodule meetings so that people that go can record the meetings they had during that event. Also would like to be able to add an expenses submodule to that. However, I don ́t seem to find a way to do it. Does anyone has a suggestion on how to do it or would this require some sort of customization?