hud cooldown icon

Hello, so im working on a game and i cant figure out how to do one thing, on the hud there are spell icons and when i cast the spell i want an effect to change the icon (cd timer, clockwise transition, etc) i already created the effect with the icon on adobe but i cant seem to find how to implement it to unreal.

Have a look here:

https://docs.unrealengine.com/latest/INT/Engine/UMG/UserGuide/Styling/index.html

Dynamic material section may be of interest to you.