I have just discovered the wonders of Cubase with GPO. However I am struggling to control the volume of different instruments when replaying the MIDI file. I thought I could just tweak the sliders in the Mixer window for the relevant instrument.... but I get no change..... I have to alter the master gain or alter the gain in the Kontakt player.... I am sure one should be able to do this via the Mixer window...
Any ideas..... I am probably missing something simple..