I would like to copy spells from an NPC spell trader of one mod to another esp, merge them into the same NPC. Enchanted Editor does not seem to do the trick with copy-pasting NPCS entries.
Then I want to update the NPCs for a running game. I guess you know about the issue if you have talked to the NPC already, everything about him, spells, items etc. is saved like a screenshot.
Any advice, even about one of the two issues? Thanks in advance!

Do you have the TES Constructiuon Set? If you add the NPC to your mod and then save it, he will now be in your mod. You can always just add the same spells in his list to your NPC, or change the ID of the original NPC to create a new npc, then change his name and attributes.


Wrye Mash is the tool you want. You can Sync to Load List the mods attached to a save, and then Repair All on the save itself. I run this every single time I add or remove a mod, or update my own mod. It can be confusing to figure out where you need to click, but it can do it. I will eventually make a visual tutorial for this - I'm sure someone here can explain it for you if you have trouble figuring out where to click for these functions like I did.

Thanks, but Wrye Mash sync + repair does not update NPC inventories and spells for NPCs that have been visited, I tried that. But since we are talking about WM, I remember it has an updater utility that might work.
Still, I am searching for a better NPC merger...

EDIT: WM updater (standalone) has stdout/stderr problems now.

EDIT2: Solved by the update-to... function of Wrye Mash. The according NPCs have been updated.

Mmm if you only wanted to merge the spells or inventory items, SmartMerger could help you. Let's see if I can get this right.

./SmartMerger.exe input.esp --reference --merge_only "NPC named;NPCS" from_file.esp updated_NPC.esp