I was wondering if it's possible to create a new skill, and, if it is possible, how can I do it?

you mean like science perception all that

I believe it is possible, but it will not be integrated seamlessly. It will not be added to the list of skills in inventory nor will it be selectable during character creation. But you can script it completely. I.e. you would have to monitor if player is doing something that increases the skill, keep the skill progression and level up messages all via script.

You could also hijack / rename an existing skill with MWSE and do with it what ever you want.


Adding completely new / seamless skills will require openMW or some Hrnchamd-level magic though.