Blender 2.8 pose mixing

I just came over from Blender 2.79. I do a lot of work with characters I have created. A while ago I found an addon that allowed me to mix poses from my pose library to create something in between two poses.

This is the addon I used in the past.

Wondering if there is something similar for 2.8?

Bumping this in hopes that someone has some information regarding this. Hoping there is some option out there that I am unaware of that allows me to mix my poses, makes it a lot easier for me to create animations.