Like I said, it's all already there in your events.
You'd only have to change the triggers.
Seems like at the moment you don't understand the events in your own game.
heck no I don't! I just started playing around with construct2.
and it's not so much a game as a learning experience.
I'm going through some of the tutorials but to grasp my head around all of it is a bit daunting. especially when you know what you want to try but you don't have a firm grasp of the way it all ties together.
that's why, for me at least and for the moment, If I ask how to do this or how to do that I can try it and hopefully remember what that particular event does and how it works.