Gamepad but pc UI?
 

Hey. Just wondering, is it possible to play the game with gamepad (on pc), but the only thing that would change is skills bar to gamepad UI, everything else would be as it's pc UI? I dislike full gamepad UI. :(

Check out the addon "Advanced Disable Controler UI".
No warranty that it still works though.

I use a little program called xpadder that allows you to map pc keys onto the gamepad. Is this the sort of thing you were looking for?

Is it allowed by ZOS? I don't wanna use any 3rd party software without making sure :)

It should be allowed as it is only simulating keyboard key pressed if you press the button at the gamepad.
Like you press the START button and the gamepad sends the command to xpadder which transfers it into an "ESC" key press, which the game takes as ESC then and opens the menu for you.

But this is not what you were serarching for, isn't it?
Did you check out Advanced Disable Controller UI

I did look at it, but seeing last update is almost two years ago I doubt it still works.

If you don't get any error messages and the addon comments don't tell there is an error you should probably try and check. I heared from another player (about 1 month ago) that he is using it.