Mobile Movement Input

Hi guys.
I would like to ask.
How can you create a movement control on mobile on which the object or character follows the finger movement on sceen while touch ? (Blueprints)

To clarify this more.Example : A= Top Screen. B=Bottom Screen
My finger is on A along with the character or in my particular case, a ball.
I want the ball to go from A to B through Touch Inputs By Setting my finger on A and go down to B while touching the screen, and the ball will follow.

I would greatly appreciate an answer
Thank you !