Extending the Structure Editor

The "edit" view is mainly a tree with elements as nodes and attributes as value for nodes. The Extension Point is org.eventb.ui.editorItems So, each new internal element should be map to a "element" (=configuration of the display). After elements should be placed in the tree with a childRelation (=where the element appear) and each attribute of the internal element should be placed with a attributeRelation (=where the attribut appear)

Adding a New Attribute

The extension point org.rodinp.core.attributeTypes is used to declare a new displaying/editing a new attribute in the Structure Editor. There are two steps for doing this: first, How the attribute is going to be displayed/edited and second, the relationship between the attribute and internal elements.