Couldn't find a mod that would allow me to pick a lock for which I already own the key. I think that it would be more immersive if one had the choice: Whether or not you want to use your key. At this point, I would also like to ask if locks will be relocked. I'm only experiencing this when NPCs catch me trespassing or - obviously - the thiefguild's chests in the training room. Maybe I didn't waited long enough, but if it should be true that locks generally aren't relocked, maybe add that feature, too? That would almost mean everything to me - well, maybe not, but I would be pretty damn grateful.