<b>Question:</b> is there a way to make a universal collision event?

<b>Answer:</b> This is a very intresting question. Basically you want to manipulate an event? Very intresting. Obviously, you can't manipulate events... which means we will have to find another way. I propose:

if position_meeting(x,y,all) {
inst = instance_place(x,y,all);
// We now know that we are colliding with instance inst
}

Place in step event.