Hi Justin,
This is Mandy Bank, I'm a Product Analyst in our Product Management Group. It is on our roadmap to provide this functionality. It really is being able to take a generic action from anywhere and not have it tied to an asset, or like you said, tied to a parent asset. While it's on our roadmap we're looking at late this year for design and implementation. I know our Services group recommends taking action at the Domain or Model level in this case.
I hope this helps, let me know if you have any more questions.
Thanks,
Mandy Bank