Detect touch up and down without released unreal engine 4

I am stuck in to problem from last week .I ask question 3-4 times after editing but not get any replay. i want to perform some operation on slide up and down .My functions are performed correctly.
But the problem is that after slide up if i slide down without touch released then it is not performed. I want to perform operation as much i slide or down .The touch up and down detected after touch released.

My game is stuck into this place. Where i have to detect that either touch continue slide up or down. The down up operation performed after released touch .I want to detect it without release touch.