Hi ppl, I have a document in the knowledge base called lecture.pdf. When the bot answers a question from the knowledge base, i dont just want the user of the bot to know the answer but also the source, i.e. e.g. the page of lecture.pdf the bot uses to make an answer. I know where to find that information in the event debugger, but how can i save this information to a variable, so that the user gets this information too?