Kontakt 5. Applying vst effect to only one instrument

I’m pretty sure that there is kind of this discussion in forum. I will be pleased if you will give me link to it.
Anyway. I Have kontakt 5. For example, I add rack instrument and I load 2 instruments: Violin and timpani. And I want to apply 3rd party reverb to those. Of course its must have different reverb level. So how to load different vst plugins or edit single plugin for each channel in one rack instrument.
I know i can add another rack for every group of instruments, but it is not comfortable).

You’ll have to use separate outputs for this.

Looking at the plugin rack to the right, click one of the buttons to the right of the plugin name to activate additional outputs. After that, route each instrument to a different output.