Any suggestion how to create a moving system like in the image above? 

@Jack8680 is it possible to send a pic? It would be very kind of you. Thank you very much.

Is it possible to change layer random?
Pressing a tripper on one of the layers and change to a random layer.

@Jack8680 And what would you suggest, if the amount of object is higher than 3?

found it!

@Jack8680 thank you very much. I didn't expect such a fast answer.

The bad think is, I've tried it out and it hasn't worked.

Do you know what's wrong? Thank you very much!

Is it possible if obeject A and after Object B hits object C a action happens, but both needs to hit obeject C otherwise nothing happens. I‘m looking for something like a „and“ function.
Thx very much for helpibg me.

I would like to know how to do this.

In you pressed object B before you pressed object 1, move to scene xy otherwise object B disapear. Do you have an idea how to do that. Trank you.

Oh sorry yeah I mean lighting. I made a typing error,

@Oli
Trank you very much. I testen it out, but I think I did something wrong.

Could it be possible for you to cremte a litte Hub, so I could see what exactle you did.

Best wishes,

Bryan