Changing Save Game Quest Progress

[usedtobealiryn]

I'm really just playing (first time through, so no storyline spoilers if you can help it. If you can't I guess it can't be helped), and not modding, so I'm not sure this is the right subforum; but this will require the Construction Set and/or the Enchanted Editor.

It's easy to remove entries from the journal with the command console; I think I even stumbled onto it with EE. But I need to find out a way to remove a quest completely--as though I had never received the quest. Not just the journal, but all the changes to character behaviour, and such, that result when one receives the quest.

If you need more specifics:
I got the quest from Percius Mercius to kill Sjoring's supporters, who attack me on sight. Is there a way I can use CE and/or EE to modify my saved game so that I have not received the quest, and Sjoring's supporters treat me as before, until I decide to do that quest in the future?

I do have saves from before, but I'd have to backtrack quite a ways with other things. I have just about zero patience for that. I usually save more often than that....I'm not sure why I suddenly slacked on that....

At any rate, I don't really need advice on how to do the quest, in case anyone's confused. I just need to know if I can remove the....would it be scripts? I really don't know as much as I should I suppose....that activated or changed or whatever when I received the quest.

Thanks very much to anyone who can help!

>>I did search here and google to see if these issues had been addressed elsewhere, but all I can seem to find anywhere is about removing or clearing out journal entries, which is already easy. If this has been covered elsewhere and I just didn't find it, I apologise, and would appreciate being pointed to the information.