You need to make sure you select the correct model to do it. Hover over GPT-4 and select DALL-E 3. Should work then!
When asked about this it said it could do this. When Prompted it decided it couldn't. When asked for an explanation it gave me; "I apologize for the confusion and any frustration it may have caused. As of my last training cut-off in April 2023, I am not equipped with the capability to generate images directly within this chat interface. My earlier response was incorrect, and I appreciate your understanding as I correct this mistake."