If needed, the Sink can be controlled by a Signal Delete. This will activate and deactivate the Sink. The same can be done with the setting Delete Mus. If you define a Tag under Delete Only Tag only MUs with the specific Tag will be deleted.
Please check the Game4Automation Class Reference for more information about the properties and methods of this component.
Please take care that the Sink is situated on the correct layer, to enable collision detection. Usually the sink should be placed on the g4aSensor Layer.