The internet is full of "How to load Keyscape in Kontakt" YouTube videos with clickbait thumbnails. They almost always show a terrible workaround involving MIDI loopback and external audio inputs. This adds instability, latency, and frustration.
You are using your Kontakt hardware to play Keyscape. For browsing, you still have to leave the Kontakt window, but your keyboard lights up and your knobs map.
Native Instruments recently released , an open standard that allows any plugin developer to map their instruments to Komplete Kontrol hardware. Spectrasonics has historically been reluctant (they use their own hardware integration, the Omnisphere hardware profiles).
You are a sound designer building a unique hybrid instrument, or you need a specific Keyscape sound inside a Kontakt-only live rig.