Thank you very much gentlemen.
I was hoping to avoid the lerp route as my last project ended up 1000 events and it became an unmaintainable mess.
I just tried out rex moveTo pugin, and it works exactly as I need. I am very surprised that C2 have not added moveTo as a built in - its very very useful and saves a lot of work. I only hope it handles layer scaling.
Pathfinding looks interesting, but for balls moving a few cm vertically in a bingo game, pathfinding is probably overkill (assuming it will treat all my UI elements as non solids?)
Ill checkout liteTween also.
All great suggestions - thanks again.