As workaround for the controller pane issues in PRV, I tend to keep 10-20 PRV windows active and controller lanes for each window set up appropriately for the tracks involved. But often I need to minimize many of them. Then there is no way to tell what is in the minimized window (Sonar doesn't use Windows task bar, but puts the minimized windows along the bottom of the desk top). Just a simple tool-tip that lists the tracks being shown in the window would save several minutes each work session ...