This menu deals with all kinds of instrument settings, or parts settings. Some of the parameters will work with almost any General Midi (GM) equipment (like Volume and Pan settings) while others only work with GS compatible synthesizers (many synths support GS, even if they don't tell you).
All parameters are operated with sliders per track (part). Note that for some platforms the number of adjustable parameters are restricted because of the size of the dialogs.
Please note that only one parts dialog can be opened at a time.
Mixer and Master
Sound, Vibrato and Envelope
Controller dialogs
Drum Instrument Parameters
Partial Reserve
Part Mode