I already have a version that does Lua context highlighting as well as running basic Lua scripts. Problem is being able to link into the DLLs that Cheffe supplies. Since the spin of Lua that Cheffe creates also limits the ability to run external DLLs, "OpenEUO" isn't all that open when it comes to external tools like ScriptUO for Lua. I'm sure there's a way to do it, but I got frustrated during my first working session. I really don't want to supply my own spin of Lua in order to get around the limitations because I do want to promote the existing safeguards that are the intended reasons for the existing limitations.
You can see a screenshot of the ScriptUO for Lua version somewhere in the Elite section.