Shortcut "Switch to Bibliography manager and Find"

I am coming from the Bookends where I requested the following:

I have to add that I use Scrivener as my main word processor.
Unfortunately, the developer said that my idea is not feasible but he suggested to implement something (a “simple AppleEvent”, in his words) which is obviously already existent in Mellel: A shortcut which copies the highlighted text, switches to Bookends, fires up the search function and pastes the text. I think such a function (termed “'Switch to Bibliography manager and Find” by another user) would be also useful in Scrivener (at least for me) and save a few seconds in each instance.

Cheers,

Nils

This really would be useful, and if Jon of Sonny Software is correct (highly likely) not too difficult to implement in Scrivener, because the feature is already in Bookends for Mellel to use.