Assign hotkey to Actions

I regularly make use of a series of actions to assist me with tagging my library. It's often possible to sort the files/ folders according to some criteria that then allows you to select the entire library susbset you're looking to apply an action against, however, when this isn't possible, it would be great to be able to assign a hotkey to an action and have it invoked via the hotkey. This would make doing things visually a lot faster.

This is on my internal wish list, but would involve a major overhaul of the current implementation.