Functionality similar to FormBuilderInput

[jfulse]

Hello! In v2 we have several custom input components that use FormBuilderInput, imported from "@sanity/form-builder/lib/FormBuilderInput". In general the v3 API is much easier to use (renderInput, members etc) but there are some use cases I haven't been able to replicate in v3. Here's one example:

We have localized fields modelled as object types: typically { nb: "norwegian content", en: "english content", ...} but not limited to string types; the content in each language can also be portable text etc. Without a custom component this will be rendered as something like

Field Title
  nb
    norwegian content
  en
    english content
...

In v2 we have a custom component that only renders the current language, and without the indentation level corresponding to the key titles ("nb", "en", ...). That is, it looks like the following when the current language is nb:

Field Title
  norwegian content

The custom input component uses FormBuilderInput to render the content correctly, be it a string or portable text or whatever.

I haven't seen how to to this with v3; from what I can tell there's no way to avoid the extra indent level corresponding to "nb", "en" using renderInput, members and so on.

We could make the custom input component from scratch but then we need something like a switch statement on the type that renders the correct input; this would be cumbersome and also I'm not sure if the standard input for portable text is exported anywhere.

Do you see a solution to this?