IA-Lateral movement

You could use the GetWorldLocation node, then you could break the vector in the ‘ReturnValue’ pin and use the ‘Y’ axis, a negative value in it will be equal to de left location and a positive one will be equal to the right position.
For moving the AI to a specific location you could use SimpleMoveToLocation node or also MoveToLocation node. To avoid lateral movement you will just make a vector using the X and Z values you want and set te Y to 0…