So I built a paint-and-prompt editor.
(1) You paint the region
(2) Type a short prompt, and done
Prompt before: "Remove the person in the far-left corner behind the person wearing a black jacket. Preserve everything else in the image, no identity change... etc"
Prompt now: "Remove him."
Website: https://swisy.app
If you try it, it will break. Please do let me know what sucked and why not worth trying. I'll fix it.