How can I make my platformer character float down slowely?

In my 2d platformer, I want to have a character that will float (fall slowly) when you are holding the up arrow after you double jump Sort of like Peach in Super Mario 3d World. Is there a way I can make the actor fall slower without changing the gravity for the entire stage? I am using the jumping and double jumping behaviors.

i think there are many ways to do this.......

explore your actor's physics and then work on SET LINEAR DAMPING............

Add this event to your actor:
   

Add this event to your actor:
   

Thank you it worked.