A Leader can be associative if it's drawn to a grip point
Is there a way to make inserted objects gripped to positions of existing entities?
If it's something to do with object overrule then it may be put in the too hard basket.
Constraints might work
Maybe a contstraint is a better term for what I'm trying to achieve.
Is it possible to constrain an object to another?
See this ADN DevBlog post: