How to make Gigapixel AI a plug in

Pardon my ignorance…

I just purchased and installed the Trio (Sharpen/Denoise/Giga). Sharpen and Denoise are available to me as plugins in my Adobe Lightroom Classic, but Giga is not.

If it is, how do I fix.
If not, what is the best workflow from LrC into Giga and back again?