Merging levelled lists with TESsnip

This page is somewhat outdated. However, I'm still yet to see a utility which can merge levelled lists, so I'll leave it here for now.

Using TESsnip to edit levelled lists is a tedious and lengthy process. In simple cases, it would be faster to just recreate the list by hand. However, as far as I’m aware TESsnip, for the time being at least, remains the only method of merging leveled lists, so here’s some info on how to do it.

• First, open the mods in the cs and check the order in which creatures appear in the levelled list. In TESsnip, you will not be able to see the correct ids, but the same order will be preserved.
• Next, open both mods with TESsnip. Browse through the GRUP records, until you find one that contains LVLC records (LVLC is levelled creatures. Other levelled lists will be different.)
• Next, find the correct LVLC record. You can read the names by putting TESsnip into string mode and looking at the EDID subrecords.
• Once you've found the correct record, each LVLO subrecord represents a creature. Check the order list you made earlier, and move any necessary LVLO subrecords from the LVLC records in one plugin to the matching LVLC record in the other plugin.
• If the plugin that you're moving the LVLO records out of actually contains those creatures, rather than them being from oblivion.esm, you will need to move the appropriate creature records too.
• Once you've moved around all the records you want, click on the name of the plugin you were moving the subrecords too, click save and enter a new filename. Let TESsnip save it, and you're done.
• You might want to open and resave the mod with the CS, to make sure it’s structured correctly.

This process is difficult to automate, because the LVLO records don’t contain the editor ids of the object they are adding. Instead they contain the form ids. This also means that editing levelled lists where the items in the list are contained in a plugin rather than oblivion.esm may not work as expected. (In fact, it wont work at all, and will generate a corrupt plugin.)