hi!
it is possible to switch various camera with a little script ?
like this :
0 20seconds - camera1
21 40seconds - camera2
41 50seconds - camera3 etc
You can use the camera’s “enabled” property to switch cameras: http://forum.unity3d.com/threads/31147-SOLVED-Switch-Camera
You can track time in various ways: Unity - Scripting API: Time
Possibly could use the yield(WaitForSeconds(20)) or something to that effect.