I have 3 prefabs named "blackout" being instantiated in the position of other 3 gameObjects I positioned and rotated myself in the editor. This works fine.

However, after the 3 blackouts are instantiated, I need to "set active to false" (disactivate) each one of them in an interval of 2 seconds between each one - starting from the first blackout - instantiated in the position of blackoutCollection[0] - until the last and third blackout - positioned in blackoutCollection[2].

How can I do this? I'm failing to access the blackout gameObjects. blackoutCollection[i] are only empty gameObjects used to place the blackout prefabs where I want.

function Blackout()
{
    var i : int = 0;

    for (i=0; i<=2; i++)
    {
        Instantiate (blackout,
        Vector3 (blackoutCollection[i].transform.position.x,
            blackoutCollection[i].transform.position.y,
            blackoutCollection[i].transform.position.z),
        blackoutCollection[i].transform.rotation);
    }

    yield WaitForSeconds(2);
    blackoutCollection[0].gameObject.active = false;
    // Lines like the above represent what I have,
    // but I don't need to disactivate those empty gameObjects.
    // I need to do this with the blackout prefabs.

    yield WaitForSeconds(2);
    blackoutCollection[1].gameObject.active = false;

    yield WaitForSeconds(2);
    blackoutCollection[2].gameObject.active = false;
}

I tryied using blackout.blackoutCollection[1].gameObject.active = false; but of course that didn't work.