Aim

Procedure

Select an object

Click the object with the left mouse button.

To select/deselect multiple objects

Holding the SHIFT button pressed down, click the objects one after another with the left mouse button.

To select all objects in the graphic

Choose Edit → Select → Select All

To select the environment; that is, the direct predecessors and successors of an object (linked by relationship or generalization/specialization) and the object itself are to be selected

First select the object or objects for which you want to select the environment. Then select Edit → Select → Select environment.

To select the complement (the complement set of the previously selected entity types is selected)

First select the objects for which the complement is to be selected. Then select Edit → Select → Select complement.

To deselect all objects

Choose Edit → Select → Deselect All Alternatively, you can click a 'free area' outside all the models.