How to use a plug in that isn't a effect, generator, tool, or analyzer?

I have successfully gotten audacity to recognize the “Nils‘ K1v – Kawai K1 Emulation Plugin” in the plug in manager. For the life of me I can not seem to find where this plug in is located. After doing some research it doesn’t seem to fit into any of the normal plug in categories?

What can I do? (V3.5.1.)

This is an instrument plugin. Instruments are not supported in audacity.