How to make climbable zone more than one?

Hi, I made a small invisible trigger zone and put a script in it which is whenever my character get inside the trigger zone and hit W, it will play the animation which make the character float up above the ladder and go to the higher ground. The problem is I tried to make a couple of climbable zone in the game but if I do that. every climbable zone will activate only one animation since character only allow to put one animation, and if that happen, no matter which trigger zone my character go to, it will only activate one animation which float itself above the first ladder that I made. Any suggestion would be appreciate?

Thank you.