Let's say if you have a jump-over icon or sprite the player runs over (let's call it jump-over sprite).
If Player -> is overlapping -> jump-over sprite then set wall to turn off collisions
then to turn it back on have an invisible sprite on the other side of the wall (let's call it Wall reset) that says
If Player is overlapping -> Wall reset then Wall will turn on collisions.
Let me know if that helps.