I used "is overlapping" earlier but now I realized I need to change that after I gave both objects a physics behavior. (they are solid now so they wont overlap each other)
I might have figured this out now!
I looked up the is "overlapping at offset" command you mentioned. And according to the manual it seems to work so that it checks if an object is within the range you set in the event sheet.
I set "is overlapping at offset x=0 and y=1" and it seems to work the way i want (when object is on top of another object it triggers an action)
yeh so problem solved