How to pass additional info in VectorStoreInfo to a LLMChain to have a conversation with a Prompt template & Memory

[astuteprogrammer]

For example if I had to provide additional info in a text file through VectoreStoreInfo to the existing sample of "Getting started - Basic Chatbot", how can i achieve it? I see LangChain forums discuss about RetrievalQAWithSourcesChain. I don't see that in LangFlow. Is this a current gap or is there a way to achieve this? I would much appreciate your help. Cheers!

https://python.langchain.com/en/latest/modules/chains/index_examples/vector_db_qa_with_sources.html