I can pretty much safely say that that mod does not exist.

I don't think anyone has written a tool to completion either that allows the features you are suggesting but I could be wrong about this. It would be useful when starting making a mod and for consistency purposes to have an editor for these things but I don't think anyone has ever actually written one because most mod makers prefer to do it all manually or have already done so so they don't have to go back.

If that made sense...