Rpg Maker Developers Group

I'm trying a plugin thats supposed to make the area of player's contact bigger , but the instructions are not very clear for me, i understand basically nothing of javascript so i dont know if i made it work.

This is what i'm trying to fix:


So installed this plugin but i dont know if im making it right, i cant seem to make it work:



And then i set this event on the stage so it would trigger a bell sound and a plugin comment making its size of contact be 1 tile bigger each direction




When i test it, its just the same, just like in the first picture, so i dont know what i did wrong... does anybody have any ideas?

Thanks for the attention!