Can't find how to click and go to next scene

Hello, question. I made 3 keyframes and got a looping nest in each frame. Now I would like to start with frame 1 looping untill you click an object and go to frame 2 which wil start looping and continue till I click another object again to go back to frame 1 (or frame 3). 

My question is, do I make the clickable object in the scene mode or do I go one stage deeper and use actioncode in there? And what would be the correct code(s)? Hope this is clear enough, otherwise let me know and I trie and specifie.

Thanks, greets, Noob Frank