I am looking for my game to randomly select 3 out of 20 objects and display them on the screen. Then I would like the three objects to randomly rotate on the screen after about five seconds. what is the best way at going about this. I have tried system->on start of layout-> set layer random(0,19) three times, but what i run into is the system will sometimes randomly select the same layer twice, or even three times. is there a better way?