before you do anything make sure you have the midi usb drivers installed and an asio interface and plug the motif to one of the inputs on the interface. then go to your midi option on fl and pick yamaha 0-1 and pick a port number. then go to the mixer on fl and put the input u have the motif on the mixer. then go to your plug-in selection and choose midi out, on the midi out choose the port number you have the motif on and you shuold then be getting motif sound on fl studio.