Added default volume fader settings for each track

[Gaku26]

Recently, there has been an increase in the number of music platforms that automatically adjust the sound pressure.
The dynamics lost by this exceeds the limit.
Therefore, to deal with this, it is necessary to lower the volume for each track. In my case, I first lower it by -6 dB. Doing this every time is very inefficient. Therefore, I propose implementing a function that allows you to set the initial position of the volume fader to any value instead of 0 dB.
If you realize this later and put a limiter on the master track, it will be pointless.

[The Rabbits]

Set an empty track (midi or audio) to the level you want then save it as the default track. The option is in the right-click menu.