Model Explorer is a tool window that is integrated with the Model Designer window. It contains a tree with all model items - classes, properties, relations, methods, etc. Model Explorer has several root nodes depending on the ORM in use - two nodes are common for all models, and one node is characteristic for Entity Framework models only.
The first common node shows you the conceptual model. By expanding the child nodes, you can view all entity types, complex types, enum types, methods and associations in the model.
The second common node shows all templates currently assigned to the model.
The third node, that is specific to Entity Framework, shows you the target database model. You can see all tables, stored procedures and functions, and constraints from your database.
Expand the root nodes of the tree to access all the elements of the model. You can double-click any element to open its editor, drag properties to change their order, use popup menus to add new classes, properties, or relationships, or to perform other actions with the model.
With the help of Model Explorer you can perform the following actions:
To access the Model Explorer window choose Model Explorer from the View menu or press CTRL+ALT+M. Also Model Explorer opens when a Model Designer is opened.