by
diiz » Thu Mar 13, 2014 4:36 am
Ok, you're confusing note volumes with automation. The volume bars in the piano rolls are note volumes, there's only one per note, so of course those can't be done more accurately.
If you want more granular control of volume, you have to actually use automation. Hold ctrl and drag the volume knob of your instrument to an automation track. Then an automation pattern appears, double click that to open the automation editor. There you can draw the volume envelope curve. Put the automation on the same position in time as the instrument pattern, and you can hear how it affects the volume.