Was able to click OK. Closed PSPad, started PSPad, opened the file again. Luckily the file was not saved.
(viz https://public.andreasburg.de/pspad/Screen-2020-08-15_13-07-25.png ) -- <https://forum.pspad.com/read.php?4,73692,74098> PSPad freeware editor https://www.pspad.com
