Solution to my question is below:
- First of all, Kontakt 7 is not supported in Notion 6, as Kontakt 7 is VST3 and Notion does not support VST3.
- The button you are referring to is actually at the top of the Kontakt GUI and not in Notion, as Kontakt is not integrated directly into Notion as it is not a PreSonus product.
Question has hereby been answered.
Greetings HarryM