Morse dual lever controls can be modified to dual station use without much trouble. My CCP cables ran from the motor to the console controls. Another set of cables attached to the console controls and ran to the upper station. The spring loaded detent and neutral safety switch were removed from the upper controls. Yes, the levers on one station move when you move the other station.
A friend of mine has Yamaha single lever controls and dual stations with the transfer box. I think one just has to ensure that one station is in neutral before using the other. I got the name and model off of the transfer box and looked it up online. Suggested list price was $4000.00.