Activate/Deactivate

Right-click object (De)activate
Sets the Activation status of a selected object and whether or not the object’s children inherit the activation status of the parent.
 
For the option:
Do the following:
Object
Enter the name of the object.
Object Active
Select if you want the object active during a Simulation.
Object's Dependent's Active
Select if you want the object's children to also be active.