Remove Curses and Horror Marks?

[Saulot]

Eh sure, why not.

Stick this into any mod you play with (or better still, make a personal preference mod for your SP games):

#selectspell "Horror Mark"
#pathlevel 0 3
#end

Modding the game is enjoyable, so I do recommend reading the modding.pdf and learning about modding, and (after you've gotten more comfortable with the game) examining other people's mods to learn what makes them tick.