Volumen, Balance, Mute/Solo option

Is a very good software to write music.
But i think it needs the option of change the volumen and balance for each instrument.
And it would be great to have the posibilitie of mute an instrument in order to listen the others.... or have the option of listen only one of all instruments.

Just like the multy-track music programs. (guitar pro, reason, cool edith pro, etc)