What about having a handler for the Relation module?
This would add flexibility and standardization of the hierarchy

I tried do make a quick handler, but I must admit it didn't worked.

Based on that:
http://drupal.org/node/558446

Comments

istryker’s picture

Title: Integration with Relation » Integration with Relation module
Version: 7.x-1.x-dev » 7.x-2.x-dev
Component: User interface » Code

This is an issue was for 7.x-1.x-dev, which is unsupported now. Moving to 7.x-2.x-dev branch. If I get time I will update the documentation. In 7.x-2.x branch the handlers are much more simple.