Volume control

Since OPENCP 2.5.1 there exists a volume control panel (currently SoundBlaster family only). You can browse through the different items with <$\uparrow$> and <$\downarrow$>. If you want to change a value, try <$\leftarrow$> and <$\rightarrow$>. You can also toggle between a short mode, a long mode (only in 132 column modes) and invisible mode with <m> (Volume control is disabled in 80 column modes and enabled in 132 column modes by default).