Data model hierarchy  

How to access the data model

How to print the data model hierarchy

How to change the display of the data model hierarchy

How to insert objects in the data model hierarchy

How to delete assignments in the data model hierarchy

How to reassign objects in the data model hierarchy

How to switch to the hierarchy of another data model

How to carry out consistency checks from the data model hierarchy

How to switch to the graphic function from the data model hierarchy

How to switch to the graphics positions of modeling objects from the data model hierarchy