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Don't assume that I haven't looked just because I am asking. I've already read the posts you linked above and it's out of date. I have installed XOOPS 2.2.3 Final, which was released on October 30th. The last post in the thread you mentioned above is June 28th. It references files and directories that don't exists. The latest XOOPS version has the changes listed in the forum and/or documentation, but no information on how to enable the KV_editor.
If the information does exist, then I have missed it and that's why I'm asking.