External instrument setup

Please, can you advice, how to:

  1. set my Yamaha QS300 synthesizer (XG, GM) and Cubase 8.5 , that I can see,hear, record, use sounds from synth as any other sound from VST instrument…

  2. Synth has transport buttons, keypad, scrolling wheel, arrow buttons, - Is it possible to set them up in order to use them as controller for Cubase?

Thank you all