Kontakt+ Render in Place

When I render in place using Kontakt using a multi with multiple outs & select one track, all outputs are being rendered over again for each out & instrument track.

So when I select one track to render ( in an 8 instrument mutli/ 8 outs) I end up with 64 audio tracks. How do I render one corresponding track at a time?

Thanks

https://www.steinberg.net/forums/viewtopic.php?f=226&t=86626