How to Map Columns in a CSV for Multimodal Datasets

I'm working with a multimodal dataset. My input prompt has a text portion and an image. I'm trying to display the image as an image, but can't figure out how. I have a csv file with my image url as a column, my text prompt as a column, and my llm output as a column. I'm trying to follow the instructions here: https://arize.com/docs/ax/prompts/prompt-playground/image-inputs-in-playground#method-1-csv-upload But for step 4 I don't see an option for mapping my columns - how do I do that?