I would like an attribute on all transform based nodes nodes to show a representation of the link to the position of any parent transform nodes it may have. It's kind of like what joints have with with its drawStyle attribute, but this would relate to its parent, instead of its children.
It should be an enum attribute with values like "None", "Line", "Dotted Line" and "Dashed Line". When set a value other than 0, it would draw a line in the viewport from the position of its world matrix to the position of its parent matrix. It would also tie in well with the new "Joint" option in the joints' drawStyle attribute.
This would help visualise parent/child offset relationships and could be helpful for rig controls, allowing for special lines to be created in the viewport without the need for adding curves to a scene.
