You might be working with a picture containing some detail that you want to eliminate or hide.
Once upon a time, in a previous version of Gimp, it worked well to select some neutral area of the picture, copy it, drag it over top of the matter to be hidden, and to anchor it in place.
But: You might want to edit your substitute piece before you anchor it. You might want to ERASE SOME EDGE THAT IS COVERING UP WHAT YOU WANT TO KEEP.
Is this doable? Is erasing from a selection now passe?
Here's one thing you can do: select/copy your neutral area, go to File>CreateFromClipboard and create a new copy of your selection. Make your erasures if needed from your new copy on the big screen. Copy that, then return to your original image and paste the copy where you want it. This could call for several repetitions till you get the substitute piece to fit where you want it. Boo, hiss.
Have you any other suggestions for erasing from a selection? CORDIALLY / MIKE