Multiselect
By this action from the dialog Modify Objects it is possible to change the selection state of the objects..

The specified objects are selected after execution of this command.
In the Multiselect dialog, the checkboxes on the left side show the possible initial states and the right ones show the state after execution of the action. If a checkbox is set it corresponds to the selected state, an empty checkbox corresponds to the deselected state. The state after execution of the action can be set via the selection menu.