Sure, here it is: – was developed for one special application. When you switch between the banks, just displays text in this area. – this is not used anymore. , – was used by old Kvant USB interface, is not used anymore. , – you can change waveform color displayed in the background of show. – to display preview line during the show playing.
Well, depends on your processor – I have Athlon Dual 4GHz and most of the time the CPU load is 0%.