[capybara_2020]

Isn't that just inpanting? Stable Diffusion has had it for a while.

Eg: https://www.youtube.com/watch?v=No1_sq-i_5U

You can do that with any part of the image, this video shows a face sample.

[SirMaster]

It might be.

https://youtu.be/Sp6K3qpVFO0?t=95

But at the very least, it seems like it's easier to work with in Photoshop.