Not currently, but in version 10 (ETA not yet available) we have Quick Actions on the toolbar. You can create an action to do that, and then access it with a couple of clicks, or using a keyboard shortcut you assign to that action. Quick Actions can be more complex, combining multiple steps in a single option. For example, replying using a custom reply-to address then adding a tag and moving the original message to a specific folder, all with a single shortcut.