While playing Skyrim I found mods that implemented new animations like idle standing, walking, reading, combat etc. Some of them were stand-alone mods but many of the little addons were compiled into one bigger mod called http://www.nexusmods.com/skyrim/mods/11811/?.

In Morrowind there are a few standard animations for NPC and a few new ones like in http://www.youtube.com/watch?v=6friXBiBhVs but I have never found an mod that adds them to the player character.

It would be great to have a function to sit down or drink with my character, read a book or use an anvil. I have seen bards that actually used their instruments but my character can't.

This would be a great mod-addon – why noone tried to create it yet?

I believe it might be due to the fact that each character is limited to 9 animations. For example, NPC can sit and read a book, but this substitues animation where the NPC scratches it's head. At least I think so.