So you could use it for immediate access to both, oscillator 1 and oscillator 2 parameters from the pots, switching between oscillators using the Page button.

Many pre-mapped plugins take advantage of the two pages*. Each page changes assignments of the 8 pots, leaving the User page for example for your own assignments. With Nektar DAW Integration, a page button allows you to switch between Default settings and User settings with LEDs clearly indicating which page is active. Better still, many devices and plugins are pre-mapped to match the blue control labels on the Impact LX+. Nektar mapping ensures this is done automatically, so you can start tweaking immediately.

INSTRUMENT PRESET The Instrument button assigns all controls to instrument parameters once an instrument track is selected in your DAW.