Enemy 4-directions movement chasing player

I'm new to Construct 2. My player can move only in the 4-directions movement (up, down, left, right). I would like the enemy to go after the player when the player gets within a certain distance of the enemy, but I would like the enemy to move only in the 4-directions movement.

I know how to make my player move correctly, but how do I give this AI to the enemy.

Thank you in advance for your help.

pathfinding set diagonal enabled to false, i think