How to install third party libraries in Kontakt 6?

Do somebody know how to install a third party library in Kontakt 6 ? (in my case Aurora Choir installed using Pulse in my computer)

I read about a dirty hack based on installing the older Kontakt 5.6, where there was still an « add library » option (currently I have Kontakt 6.4.2 and Kontakt 5.8.1 on my computer). Is there not a cleaner way of doing it ?

I answer my own question while I am discovering Kontakt: only libraries for Kontakt Player can be installed in the Kontakt left panel list of instruments. For other it is only possible to use a list of favorites.
Everything is explained here for Kontakt newbies like I still am:

Here’s another good option for adding non-licensed libraries to the Library tab instead of having to use the Files tab.

Note that many libraries come with a serial number which has to be entered into Native Access to register the library. Once entered - you have to now point to the actual library (place where you installed the samples) at which point your Kontakt 5 and Kontakt 6 will see the library properly

In Kontakt 6, the behavior you’re seeing is actually expected and not a bug. Native Instruments removed the old “Add Library” feature after Kontakt 5.6, so only Kontakt Player–licensed libraries can show up in the left-side Library browser. Anything like Aurora Choir (installed via Pulse) that isn’t officially registered for Kontakt Player will load fine, but it won’t appear in that panel. In that case, the clean workflow is using the Files tab, Quick-Load, or manually organizing snapshots and presets inside Kontakt instead of forcing it into the Library list.

For users trying to manage or troubleshoot third-party setups more cleanly, it often helps to follow structured guidance rather than outdated hacks like downgrading to 5.6. A useful reference point that sometimes gets shared in communities is the official support-style contact hub at Wowzers Contact where similar setup questions and routing ideas are discussed in a more organized way through Wowzers resources. The key takeaway is that Kontakt 6 isn’t broken, it’s just stricter about what qualifies as a “library,” so non-Player instruments will always stay outside that sidebar even though they function normally inside the engine.

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