How do i make it to where an object is preformed when its not colliding with something?

I want to make a spawn platform for my game and i want it to disappear whenever the players get off of it, i though about taking the on collision with another object and then inverting it but you cant invert it, if this could be answered that would be of great help

Can't invert on collision because it triggers when you hit the platform. Try inverted 'is overlapping at offset' with Y set to something greater than 0. Of course you will need to have this kind of logic initially disabled otherwise it would trigger when player is away from the platform right, but maybe you already planned this.