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change the display of the inverse hierarchy 
Expanding a sub-tree
If you wish to display all the objects from the next level up in the hierarchy of a data model, proceed as follows:
Alternatively, you can click on the symbol to the left of the data model name.
Compressing a sub-tree
If you no longer wish to display the objects from the next level up in a data model, proceed as follows:
Alternatively, you can click on the symbol to the left of the data model name.
Setting the focus
If you wish another data model to become the root of the display, proceed as follows:
Above the new display, the path from the root of the previous display to the new root is shown. You can turn it into the root of the display by double-clicking on one of the path definitions.