Leveled List Compatibility Techniques
Various methods of resolving Leveled List conflicts between multiple plugins.
Automatic Leveled List Merging
This method is provided by tools such as Wrye Bash (via the Bashed Patch feature). It's very easy, but can result in some oddities depending on the kinds of changes made by different mods. See Wrye Bash List Merging.
Manual Leveled List Merging
This method works best with tools such TES4Edit. It's relatively easy to merge a few lists this way and it provides great control over the results, but it also quickly becomes tedious if you need to merge changes to very many lists.
OBSE Leveled List Merging
This method uses the AddToLeveledList and related functions in OBSE v0013+. This method allows mods to add remove or alter objects in leveled lists without changes being overwrriten by later loading mods, but requires the modder to be familiar with OBSE scripting (and of course requires the end-user to have OBSE installed). Care must also be taken not to make redundant changes to lists (such as adding something that has already been added by another similar mod, or included in a bashed patch).