The problem is having the lights in the objects, that is, the whole process of dragging the lights inside a thing.

I have a helmet. It has gems on it. The gems should be having their own fire due to their magical qualities (yeah, yeah, Silmarils, I know). So I need to have wee lights inside the gemstone, but for the life of me I can't do that. If I do the 'point at lights', they lit up the scene too much. If I drag lights, they either disappear or not go where I want them to go at all. I haven't tried the suggestion from hborre above.