Native Instruments DRUMS OverKILL Operation Manual page 37

corner deletes the instrument, and the + button switches to performance
view.
Instrument maximized view is also available. An instrument in maximized view
shows additional details about the instrument, such as output settings, MIDI
channel, polyphony, a memory meter, and the purge.
KONTAKT PLAYER 2 supports up to  MIDI input channels ( ports
with 1 channels each); only the stand-alone version supports  MIDI
in ports; your physical MIDI in ports that are marked as active in the
Audio Setup dialog's MIDI tab are assigned to ports A - D automatically;
in the plug-ins, only port A is active.
Clicking on the gear icon itself brings up the Instrument Options window,
which will be discussed below.
Instrument Options
Instrument Tab
Voice Stealing Mode: Choose from the following.
• Kill Any (the algorithm decides which is the best one to steal)
• Kill Oldest (oldest note still sounding)
KONTAKT PLAYER 2 – 3