If you only need to move along a line from A to B, try the Linear Animation brick inside the MacGruber's Logic Bricks plugin collection.
Overview LogicBricks is a collection of now 34 reusable logic plugins to quickly build simple logic without coding. These go from a simple Relay that just groups triggers via Counter and Blend to more complex bricks for RandomChoice and a very...
hub.virtamate.com
Edit: Of course, you need to set a UISlider to control the value (don't remember the exact name) inside the Linear Animation plugin.
If you opt to use Animation Pattern atoms, mind that the animation resets when you save the scene.