My Buick Verano has the auto/manual stick shifter. The Verano is the same platform as the Chevy Cruze which is related to the Cobalt. Delta vs Delta II platform. Everthing "looks" pretty similar to a Cobalt underneath there when doing oil changes. Maybe a future Goblin donor?
In the Verano for Drive, pull the release button and pull straight back. To engage manual mode, pull the shift lever to the left, push forward to upshift, pull back to down shift.
Push shifter back to the right to engage full auto.
It may be possible to graft this into a Goblin. Shifter housing with mechanisms might bolt right to the Goblin.
The trans computer and connections would take some research though.
Just a thought to ponder.