The configuration options apply to the four hierarchical levels. Each level contains a number of categories, or groups, of options. 

The configuration options can be specified at the following levels:

• Default: Options at this level apply to all the current projects and project groupsolutions, as well as newly created ones. Diagram options apply to newly created diagrams within these projects and project groupsolutions. All options are available at this level.
• Project groupSolution: Options at this level apply to the current project groupsolution. Diagram options apply to newly created diagrams within this project groupsolution. All options are available at this level.
• Project: Options at this level apply to the current project. Diagram options apply to newly created diagrams within this project. All options except the Model View category are available at this level.
• Diagram: Options at this level apply to the current diagram. The Diagram options category is only available at this level.