There is this [little piece of code]( https://github.com/Limenius/Liform/blob/b7af6414fa537ba15799a794771d7d90b5820d67/src/Limenius/Liform/Transformer/CompoundTransformer.php#L63) that allows us to modify the schema per type, kind of what `buildView` does in Sf Forms. This should be documented.