- You don’t have to lock any axes, just get the actor location and feed its X and Z into the respective pins in Set Location.
- As said above, use a float track. L
- I found it more informative to use target points and Easing between them. That is, If you have specific locations your actor should move to. If you create your timeline track with length of 1 second, it will be easy to scale it by setting its play rate.