Deathclaws and Doorways

[Fantafaust]

CONCEPT
I don't normally make mod requests, but with my meager modding experience I don't know how to make animations or implement them. So if someone could make an animation for deathclaws to enter doorways(without doors in them presumably) it would be much appreciated.
The general idea would be something like them crouching down and climbing through with one "hand" on the lintel and the other on the side.

WHY?
I mainly want this for the deathclaw at the beginning of the game, but if the potential was there for all deathclaws that would also be cool. They are scary in that they can grab you, and can cause serious damage, but not being able to follow you into a building they could certainly squeeze into if they were real just kills it for me.

IMPLEMENTATION
I'm unclear on how adding animations and behavior even works, let alone how the pathing actually works for such large creatures. Of course, I assume if it can't be a default action of theirs then I would have to use a trigger placed around such doors to set off a paired animation, or maybe it could be furniture of some type, I am capable of doing that much, at least.

FEEDBACK
I'm willing to listen to complementary ideas like adding dust effects or something, and will also look at especially clear tutorials on making animations if you can provide them. If this is completely not a viable concept, I would also like to know and will accept that. If it can be done but not exactly how I'm describing, that's fine too.

Thanks for any advice or help.