I know there's no way to support a language list or search, but I think it should at least support text. Or at least have a way of hiding the search so that it can be modified.

I don't know, it's probably due to the updates to FancyMenu itself, which have perhaps corrected this.

I'm currently not going to support FancyMenu. The search and text are editable in LR 1.5.11+1.20.6: