HELP ME

[Ofnuts]

This is the tool options dialog Windows > Dockable dialogs > Tool options. You can re-dock it by dragging it by the tab (not the title bar) and dropping it on the Undo tab.

If all else fails you can also reset the windows positions: Edit > Preferences > Windows management > Reset saved window positions .....

See also: https://www.gimp-forum.net/Thread-Managi...-positions