Hey eric 
Is there any way to modify this awesome plugin so instead of doing only a single frame it could do a whole motion clip.  I think the ability to mix the bottom part (legs) of one clip with the top part (arms) of another clip would be amazing !!!
Any developers that I could reach out to have this done? 

Hi @Megaoutput

Currently I do not have a name of this developer to help, or find anything that 100% fits your requirements.
But I do recommend one plugin: Motion Trigger, that allows you to trigger motion with hotkeys, and also change the motions.
https://marketplace.reallusion.com/motion-trigger_288707

If there's any developer who is willing to develop the plugin and make a concept video for this, please private message me, and I will see what I can help to make this happen!

Eric