Can I parent objects to parts of a group instance?

Question

Let's say I have a group of ten parts and I want to parent an object to one of the objects in a group instance. Is that possible?

Answer 1

No, an instance is just an empty object (with a DupliGroup).

You should place an empty where the target object is located within the group. Parent the empty to the group instance and then parent your object to the empty.