Native Instruments KOMPLETE KONTROL S88 MK2 88-Key Controller for KOMPLETE - Manual (Page 72)

POLYPLEX in Additional View.
Besides of selecting Additional View via the KOMPLETE KONTROL Menu and the application
menu, you can also do this by clicking the + button in the KOMPLETE KONTROL header.
Clicking it again will return to the Default View.
The + button opens and closes the Additional View.
Global Controls and Preferences
Instrument Views
KOMPLETE KONTROL S-Series - Manual - 72