Action based on UID

I have a ship with 4 turret instances on it, set to 4 ImagePoints. I'd like to keep them on those points when the ship moves.

The action I tried was:

System Every Tick - (TurretObject) Set position to (ship.ImagePointX(Turret.UID), ship.ImagePointY(Turret.UID))

However, it sets them all to ImagePoint0.

Additional question - How should I be using groups? I read about how objects can be grouped for picking purposes. It doesn't apply for my current project because I only ever have one ship at the moment, but if I had multiple ships I might want to use this logic. However, when I made a group with the ship and turret and added my 4 turret instances to the ship, it made 4 more ships too! Would I need a separate turret objects for each turret rather than instances of the same turret object?

I would try the pin behavior which lets you select which image point you want. No need to do an every tick, as it takes care of that for you.

Thanks, pin was what I was looking for.

Forgot to look in the behaviors.

For future reference in case someone searches into this thread

Pin Behaviour

scirra.com/manual/99/pin

Pin to Image Point -

scirra.com/forum/pin-to-image-point_topic60036.html