Regenerate the exact photos the AI generated but adapt to the change of lighting, backdrop, etc.

I have a client where we generated splashes for a photo but the client keeps changing the backdrop without wanting to change the splashes. So, I was wondering it would be really great if we could regenerate the splashes and keep the form but change the backdrop of lighting. If there is a button like that instead of doing another prompt. When we do another prompt, it actually changes the entire image.