Change the number of records returned by VectorstoreIndexCreator?

Short Course Q&A LangChain for LLM Application Development
1 
    index = VectorstoreIndexCreator(
        vectorstore_cls=DocArrayInMemorySearch,
        embedding=OpenAIEmbeddings(),
    ).from_loaders([loader])

I believe by default this returns 4 records - how to return n records? Can’t find it well documented and isn’t in the course

2

this is a good question, has anyone found how to increase the # of records returned?