Never tried it,would need a different belt,and would not know what motor to use.The drive system has a master motor /slave motor set up and I don't know the master from the slave.
Also the plater is one piece and a pain to set the belt on the motors without the proper tools, that I do not have,best left alone.
I have been giving the two motors one belt,two motors multiple belts some thought,I know thinking can be dangerous .
One motor single belt seems to have more contact on the inner hub but only about 60%of that contact is actually under tension to supply the drive.
As the belt leaves the motor pulley the belt is being pushed and has no tension,so it can vibrate ,think bicycle chain or old style farm machinery using huge belts.
So using mutiple belts could increase this potential problem.
This vibration is probably the reason cotton thread,fishing lining,filament thread are used by some TT Makers.
At what point the belt retains tension,I am unsure ,but somebody has probably done the maths.
With the two motor one belt set up you cure a few problems,
The belt is completely under tension.
You control bearing wobble.
More torque,think how much speed you could achieve using two hands to spin a platter as compared to one,like making fire with a stick.
I remember in the 80s Voyd had a two motor one belt turntable before they went to three motors one belt,funks vector drive is a one motor version of this.
Current turntables using two motors one belt include Audio note tt2 and Dr Feickhert Blackbird,and these are the next models up on the one motor TTs.
Hope I have explained my thinking with to much confusion.