How can I create a Mac Address Book plug-in that also appears in Spotlight?

I've installed a great little app called PushDialer for my Mac that is letting my initiate iPhone calls to contacts remotely from my Mac.

It seems to work by installing an Address Book plug-in, so that when I click on a phone number in the Contacts app, 'Dial with iPhone' appears as a choice on the context menu.

However, if I search for a contact using Spotlight, then when I click the phone number on Spotlight's 'quick look' window, this context menu item is not visible. Instead, only the three default OS X items are there - 'Show in large type', 'Send message' and 'FaceTime'.

Is it possible to add a Spotlight context menu item for Contacts in the same way? I'd much prefer to make my calls without having to open the Contacts app.

It appears Spotlight does not make use of Address Book plug-ins.

Extra menu items added by Skype also fail to appear in the Spotlight preview.

It is worth providing feedback to Apple asking for this functionality to be added. It would greatly improve Spotlight.

Context Menu in Contacts.app:

Context Menu of Contact in Spotlight: