I do not understand completely, so here are two options: If you want the light to be attached to the helicopter: Group the heli and the light or, in the scene tray, drag the light on the helicopter object. Now it is attached when you animate the group or the parent. If you want a light to follow (track) the helicopter: Select the light, attach a 'point at' behaviour. You can select the helicopter as a the object to track, or group the helicopter with an invisible object that is placed more specificly, or animated indipendent from the helicopter. Hope this helps!