MIDI Key Editor - Drag the connection between two notes

This is awkward to explain, but in the MIDI key editor (any Cubase version), I have two adjacent eighth notes selected (attachment 1).

My objective is to change those straight 8ths to a triplet feel quarter note & eighth note
(attachment 2).

As far as I know, I have to do this in two steps: Lengthen the first note to an 8th note triplet quarter note and shorten the second note to an 8th note triplet eighth.

It would sure be sweet if there was a way to drag the intersection of the two notes (attachment 3), which would simultaneously lengthen one and shorten the other.

I’ve seen this done with audio joins and transitions in other apps and it sure is a time saver… does Cubase provide this kind of action on MIDI events?
Cubase-8ths-to-triplet-2.jpg
Cubase-8ths-to-triplet-1.jpg
Cubase-8ths-to-triplet-3.jpg