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