Confusion about Instrument and Groups

6cyth3

So i am planing on creating my first instrument with Kontakt.

The main concept of the instrument is blending 2 genres together by having a drop down menu for each of the genres with an A/B mix fader. (Similair to the Twenty Five Instrument)

So i have been watching tons of Tutorials but one thing still confuses me a lot.

Are the Groups supposed to be the Sounds i can later select in those drop down menus or are those supposed to be Instruments?

Thanks in advance and sorry for the noob question :)