Is this what you were after WorkNow.capx? This is what I could get working using the path finding behavior. You can do this with a bullet behavior as previously mentioned but I've found there are pros and cons to each way.
+ Can navigate obstacles
+ Has conditional event trigger [Is moving along path, On arrived]
+ Pretty straight forward to get working
- Can chew up a fair chunk of memory for complex paths and multiple objects
- Requires stopping and starting to find new paths
+ can constantly chase the player by adjusting the trajectory angle
+ can move smoothly and is flexible
- can't detect obstacles and adjust behavior
- can take a fair bit to get working if you want to include obstacle dodging
I hope this helps you out!