As 1 of the key feature from the v16 AI website tools, the user would be able to insert or replace the image via AI Image Generator, where it'd be all just a prompt away as below.
Sample use case: AI Image generated via prompt of "A guy lifting heavy weights"
1. Navigate and enter with the custom prompt
2. Select on "Use this image" to replace the existing image with the AI generated image.
Note: There is only 10 image credit per day, meaning that user would be able to generate 10 AI images each day.