Questions in FNaF Engine

Is there a way to make cameras with multiple animatronics at the same time? For the stage i tried to do animatronic1,animatronic2 and It works. But It gives me an error whenever an animatronic tries to go in a camera with another animatronic in it

HOW DO I FIX THIS

Does anybody know how to solve this?

I Can't open the game for some reason, when i try to open FNAF Engine this happens

how the hell do i donwload this,

I can't program the cameras correctly, when I go there and test in the game, some buttons disappear from the screen and the ones that remain don't take me to another camera, can someone explain to me how it needs to be done to program them correctly?