[LE] Apply animations to mounts with something like public poser - possible?

[NILRYTH]

Trying to think of a way to apply emote animations to custom mounts, is there a way to use mods like public poser on creatures? The chaurus and spider mounts I'm working on seem to have idles playing at random, but I'd love a way to play some with a hotkey. Given that this is for a drider mod, It'd be dope to have the player mounted on it do their own animation at the same time.
I'm also trying to figure out how to apply new riding animations to the player without changing the animations for all the horses too, is that possible with custom creatures? Would I have to dupe whatever it is that controls the riding function?

[Sphered]

Possible but not a quick easy task. Approach I would go is to rewrite a copy of existing human animations to only affect the upper body, and implement then in a way they could be triggered as subgraph animations. Wouldnt necessarily need an animation framework to add to the pool but it would likely be the most seamless method on that portion. In short I doubt you will see this because it would be very time consuming